List of thermal conductivities

In heat transfer, the thermal conductivity of a substance, k, is an intensive property that indicates its ability to conduct heat. For most materials, the amount of heat conducted varies (usually non-linearly) with temperature.<ref>"Metals, Metallic Elements and Alloys - Thermal Conductivities". Engineeringtoolbox.com. Retrieved 15 March 2022.</ref>

Thermal conductivity is often measured with laser flash analysis. Alternative measurements are also established.

Mixtures may have variable thermal conductivities due to composition. Note that for gases in usual conditions, heat transfer by advection (caused by convection or turbulence for instance) is the dominant mechanism compared to conduction.

This table shows thermal conductivity in SI units of watts per metre-kelvin (W·m⁻¹·K⁻¹). Some measurements use the imperial unit BTUs per foot per hour per degree Fahrenheit (1 BTU h⁻¹ ft⁻¹ F⁻¹ = {{{1}}}

Sortable list

This concerns materials at atmospheric pressure and around 293 K (20 °C).

Material	Thermal conductivity [W·m−1·K−1]	Notes
Acrylic glass (Plexiglas V045i)	0.170<ref name="GoodFellow-PMMA">www.goodfellow.com. "Polymethylmethacrylate - online catalogue source - supplier of research materials in small quantities - Goodfellow". www.goodfellow.com.</ref>–0.200<ref name="Plexiglas">"Archived copy" (PDF). Archived from the original (PDF) on 23 February 2007. Retrieved 28 October 2008.{{cite web}}: CS1 maint: archived copy as title (link)</ref>
Alcohols, oils	0.100<ref name="EngineeringToolbox-429"/><ref name="Hukseflux"/>
Alumina	30<ref name="properties">Material Properties Data: Alumina (Aluminium Oxide) Archived 2010-04-01 at the Wayback Machine. Makeitfrom.com. Retrieved on 2013-04-17.</ref>	For main article, see Aluminium oxide.
Aluminium	237<ref name="TPRC1G" />
Aluminium nitride	321<ref>Cheng, Zhe; Koh, Yee Rui; Mamun, Abdullah; Shi, Jingjing; Bai, Tingyu; Huynh, Kenny; Yates, Luke; Liu, Zeyu; Li, Ruiyang; Lee, Eungkyu; Liao, Michael E.; Wang, Yekan; Yu, Hsuan Ming; Kushimoto, Maki; Luo, Tengfei; Goorsky, Mark S.; Hopkins, Patrick E.; Amano, Hiroshi; Khan, Asif; Graham, Samuel (2020). "Experimental observation of high intrinsic thermal conductivity of AlN". Physical Review Materials. 4 (4): 044602. arXiv:1911.01595. Bibcode:2020PhRvM...4d4602C. doi:10.1103/PhysRevMaterials.4.044602. S2CID 207780348.</ref>	For high-quality single crystal.
Beryllia	209–330<ref name="BeO-properties">"Beryllia (Beryllium Oxide, BeO)". MakeItFrom.com. 30 May 2020. Retrieved 15 March 2022.</ref><ref name="BeO-properties2">"American Beryllia". American Beryllia. 12 September 2014. Retrieved 15 March 2022.</ref><ref name="BeO-properties3">"Beryllium Oxide - Beryllia". AZO Materials.</ref>	For main article, see Beryllium oxide.
Bismuth	7.97
Boron arsenide	1300<ref>Kang, Joon Sang; Li, Man; Wu, Huan; Nguyen, Huuduy; Hu, Yongjie (2018). "Experimental observation of high thermal conductivity in boron arsenide". Science. 361 (6402): 575–578. Bibcode:2018Sci...361..575K. doi:10.1126/science.aat5522. PMID 29976798.</ref>
Cubic boron nitride	740<ref>Leichtfried, G.; et al. (2002). "13.5 Properties of diamond and cubic boron nitride". In P. Beiss; et al. (eds.). Landolt-Börnstein – Group VIII Advanced Materials and Technologies: Powder Metallurgy Data. Refractory, Hard and Intermetallic Materials. Landolt-Börnstein - Group VIII Advanced Materials and Technologies. Vol. 2A2. Berlin: Springer. pp. 118–139. doi:10.1007/b83029. ISBN 978-3-540-42961-6.</ref>
Copper (pure)	401<ref name="EngineeringToolbox-429"/><ref name="Wikipedia-Th"/><ref name="GoodFellow-Copper">www.goodfellow.com. "Copper - online catalogue source - supplier of research materials in small quantities - Goodfellow". www.goodfellow.com.</ref>	For main article, see Copper in heat exchangers.
Diamond	1000<ref name="EngineeringToolbox-429"/>
Fiberglass or foam-glass	0.045<ref name="Hukseflux"/>
Germanium	60.2
Polyurethane foam	0.03<ref name="EngineeringToolbox-429"/>
Expanded polystyrene	0.033–0.046<ref name="Yucel"/>
Manganese	7.810<ref name="EngineeringToolbox-429"/>	Lowest thermal conductivity of any pure metal.<ref>Apart from maybe Neptunium (6.3 W/(m⋅K)) and Plutonium (6.74 W/(m⋅K)).</ref>
Water	0.5918<ref name="TPRC3G"/>
Marble	2.070–2.940<ref name="EngineeringToolbox-429"/><ref name="Marble-Institute"/>
Silica aerogel	0.02<ref name="EngineeringToolbox-429"/>
Silicon nitride	90,<ref name="aip.scitation.org">Dow, Hwan Soo; Kim, Woo Sik; Lee, Jung Woo (2017). "Thermal and electrical properties of silicon nitride substrates". AIP Advances. 7 (9). doi:10.1063/1.4996314.</ref> 177<ref name="sciencedirect.com">Zhou, You; Hyuga, Hideki; Kusano, Dai; Yoshizawa, Yu-ichi; Ohji, Tatsuki; Hirao, Kiyoshi (2015). "Development of high-thermal-conductivity silicon nitride ceramics". Journal of Asian Ceramic Societies. 3 (3): 221–229. doi:10.1016/j.jascer.2015.03.003.</ref>	Ceramics material.
Silver	406<ref name="HyperPhysics" />	Highest thermal conductivity of any pure metal.
Snow (dry)	0.050<ref name="EngineeringToolbox-429"/>–0.250<ref name="EngineeringToolbox-429"/>
Teflon	0.250<ref name="EngineeringToolbox-429"/>
Kapton (tape)	1.720<ref name="Kapton">Benford, D. J.; Powers, T. J.; Moseley, S. H. (1999). "Thermal conductivity of Kapton tape". Cryogenics. 39 (1): 93–95. doi:10.1016/S0011-2275(98)00125-8. ISSN 0011-2275.</ref>

Analytical list

Thermal conductivities have been measured with longitudinal heat flow methods where the experimental arrangement is so designed to accommodate heat flow in only the axial direction, temperatures are constant, and radial heat loss is prevented or minimized. For the sake of simplicity the conductivities that are found by that method in all of its variations are noted as L conductivities, those that are found by radial measurements of the sort are noted as R conductivities, and those that are found from periodic or transient heat flow are distinguished as P conductivities. Numerous variations of all of the above and various other methods have been discussed by some G. K. White, M. J. Laubits, D. R. Flynn, B. O. Peirce and R. W. Wilson and various other theorists who are noted in an international Data Series from Purdue University, Volume I pages 14a–38a.<ref name="TPRC1G" />

This concerns materials at various temperatures and pressures.

Material	Thermal conductivity [W·m−1·K−1]	Temperature [K]	Electrical conductivity @ 293 K [Ω−1·m−1]	Notes
Acrylic glass (Plexiglas V045i)	0.17<ref name="GoodFellow-PMMA"/>-0.19<ref name="GoodFellow-PMMA"/>-0.2<ref name="Plexiglas"/>	296<ref name="GoodFellow-PMMA"/>	7.143E-15<ref name="GoodFellow-PMMA"/> - 5.0E-14<ref name="GoodFellow-PMMA"/>	Note: There are no negative conductivities and the symbols that could be read that way are hyphens to separate various estimates and measurements.
Air and thin air and high tech vacuums, macrostructure	0.024<ref name="EngineeringToolbox-429">"Thermal Conductivity of common Materials and Gases". www.engineeringtoolbox.com.</ref><ref name="HyperPhysics">HyperPhysics, most from Young, Hugh D., University Physics, 7th Ed., Addison Wesley, 1992. Table 15-5. (most data should be at 293 K (20 °C; 68 °F))</ref><ref name="EngineeringToolbox-156">"Air - Thermophysical Properties". www.engineeringtoolbox.com.</ref>-0.025<ref name="Hukseflux">"Products & Services - Hukseflux Thermal Sensors". www.hukseflux.com.</ref> 0.0262 (1 bar)<ref name=crc84.6-195/> 0.0457 (1 bar)<ref name=crc84.6-195/> Formula values d=1 centimeter Standard Atmospheric Pressure 0.0209 0.0235 0.0260 List<ref name="Weast">Weast, Robert C., Editor-in chief, Handbook of Chemistry and Physics, 48th Edition, 1967-1968, Cleveland: The Chemical Rubber Co., 1967</ref> 0.1 atmosphere 0.0209 0.0235 0.0260 0.01 atmospheres 0.0209 0.0235 0.0259 0.001 atmospheres 0.0205 0.0230 0.0254 0.0001 atmospheres 0.0178 0.0196 0.0212 10−5atmospheres 0.00760 0.00783 0.00800 10−6atmospheres 0.00113 0.00112 0.00111 10−7atmospheres 0.000119 0.000117 0.000115 List <ref name="Lasance">Lasance, Clemens J., "The Thermal Conductivity of Air at Reduced Pressures and Length Scales," Electronics Cooling, November 2002, http://www.electronics-cooling.com/2002/11/the-thermal-conductivity-of-air-at-reduced-pressures-and-length-scales/ Retrieved 05:20, 10 April 2016 (UTC).</ref>	273<ref name="HyperPhysics"/><ref name="EngineeringToolbox-156"/>-293<ref name="Hukseflux"/>-298<ref name="EngineeringToolbox-429"/> 300<ref name=crc84.6-195/> 600<ref name=crc84.6-195/> 233.2 266.5 299.9 233.2 266.5 299.9 233.2 266.5 299.9 233.2 266.5 299.9 233.2 266.5 299.9 233.2 266.5 299.9 233.2 266.5 299.9 233.2 266.5 299.9	hiAerosols2.95<ref name="Pawar">Pawar, S. D.; Murugavel, P.; Lal, D. M. (2009). "Effect of relative humidity and sea level pressure on electrical conductivity of air over Indian Ocean". Journal of Geophysical Research. 114 (D2): D02205. Bibcode:2009JGRD..114.2205P. doi:10.1029/2007JD009716.</ref>-loAerosols7.83<ref name="Pawar"/>×10−15	(78.03%N2,21%O2,+0.93%Ar,+0.04%CO2) (1 atm) The plate distance is one centimeter, the special conductivity values were calculated from the Lasance approximation formula in The Thermal conductivity of Air at Reduced Pressures and Length Scales<ref name="Lasance" /> and the primary values were taken from Weast at the normal pressure tables in the CRC handbook on page E2.<ref name="Weast" /> Let K0 is the normal conductivity at one bar (105 N/m2) pressure, Ke is its conductivity at special pressure and/or length scale. Let d is a plate distance in meters, P is an air pressure in Pascals (N/m2), T is temperature Kelvin, C is this Lasance constant 7.6 ⋅ 10−5 m ⋅ K/N and PP is the product P ⋅ d/T. The Lasance approximation formula is Ke/K0 = 1/(1+C/PP). Some readers might find the notation confusing since the original mK might be interpreted as milliKelvins when it is really meter-Kelvins. He(Lasance?) puts a one (1) at the end of his equation so that it appears like this: Ke/K0 = 1/(1+C/PP)(1). Eventually you can find out from his graph that the (1) at the end is not part of his formula and instead he is citing his graph.
Air and thin air and high tech vacuums, microstructure	Formula Values d=1 millimeter Standard Atmospheric Pressure 0.0209 0.0235 0.0260 0.1 atmosphere 0.0209 0.0235 0.0259 0.01 atmospheres 0.0205 0.0230 0.0254 0.001 atmospheres 0.0178 0.0196 0.0212 0.0001 atmospheres 0.00760 0.00783 0.00800 10−5 atmospheres 0.00113 0.00112 0.00111 10−6 atmospheres 0.000119 0.000117 0.000115 10−7 atmospheres 0.0000119 0.0000117 0.0000116 List<ref name="Lasance" />	233.2 266.5 299.9 233.2 266.5 299.9 233.2 266.5 299.9 233.2 266.5 299.9 233.2 266.5 299.9 233.2 266.5 299.9 233.2 266.5 299.9 233.2 266.5 299.9		All values calculated from the Lasance formula: Lasance, Clemens J., "The Thermal Conductivity of Air at Reduced Pressures and Length Scales," Electronics Cooling, November 2002.<ref name="Lasance" /> Plate separation = one millimeter.
Air, standard air	0.00922 0.01375 0.01810 0.02226 0.02614 0.02970 0.03305 0.03633 0.03951 0.0456 0.0513 0.0569 0.0625 0.0672 0.0717 0.0759 0.0797 0.0835 0.0870 List, TPRC 3, pp 511–12<ref name="TPRC3G" />	100 150 200 250 300 350 400 450 500 600 700 800 900 1000 1100 1200 1300 1400 1500		<ref name="TPRC3G" />
Air, typical air	30°N January Sea Level: 0.02535 1000 meters: 0.02509 2000 meters: 0.02483 3000 meters: 0.02429 30°N July Sea Level: 0.02660 1000 meters: 0.02590 2000 meters: 0.02543 3000 meters: 0.02497 60°N January Sea Level: 0.02286 1000 meters: 0.02302 2000 meters: 0.02276 3000 meters: 0.02250 List USSAS pp 103, 107 &123<ref>Dubin, Maurice; Sissenwine, Norman and Tewels, Sidney, NASA, AFCRL & ESSA US Standard Atmosphere Supplements, US Government Printing Office 1996.</ref>	288.52 285.25 281.87 275.14 304.58 295.59 289.56 283.75 257.28 259.31 256.08 252.85		TPRC standard air is very nearly equivalent to typical air worldwide.
Air, wet air	≈Typical Air			<ref name="Robertson" />
Air in motor windings at normal pressure, Lasance approximations	360 Kelvins 10−2 meters: 0.03039 10−3 meters: 0.03038 10−4 meters: 0.03031 10−5 meters: 0.02959 List, TPRC Vol 3 page 512.<ref name="TPRC3G" /><ref name="Lasance" />	360		An investigator has reported some high values for the thermal conductivity of some metal air laminates both varnished and otherwise. See Taylor, T.S., Elec. World Vol 76 (24), 1159–62, 1920 in TPRC Data Series Vol 2, pp 1037–9.<ref name="TPRC2G" />
Alcohols or oils	0.1<ref name="EngineeringToolbox-429"/><ref name="Hukseflux"/>-0.110<ref name="EngineeringToolbox-1260">"Thermal Conductivities for some common Liquids". www.engineeringtoolbox.com.</ref>-0.21<ref name="EngineeringToolbox-429"/><ref name="Hukseflux"/>-0.212<ref name="EngineeringToolbox-1260"/>	293<ref name="Hukseflux"/>-298<ref name="EngineeringToolbox-429"/>-300<ref name="EngineeringToolbox-1260"/>
Aluminium,<ref name="Aluminium or aluminum">Aluminium (or Aluminum) - Periodic Table of Videos (9:16) on YouTube</ref> alloy	Mannchen 1931: 92% Aluminum, 8% Magnesium Cast L 72.8 100.0 126.4 139.8 Annealed L 76.6 104.6 120.1 135.6 88%Aluminium, 12% Magnesium Cast 56.1 77.4 101.3 118.4 Mever-Rassler 1940: 93.0% Aluminium, 7.0% Magnesium 108.7 List<ref name="TPRC1G" />	87 273 373 476 87 273 373 476 87 273 373 476 348.2		Mannchen, W., Z Metalik..23, 193–6, 1931 in TPRC Volume 1 pages 478, 479 and 1447. Mever-Rassler. The Mever-Rassler alloy has a density of 2.63 g cm−1. Mever-Rassler, F., Metallwirtschaft. 19, 713–21, 1940 in Volume 1 pages 478, 479 and 1464.<ref name="TPRC1G" />
Aluminium,<ref name="Aluminium or aluminum"/> pure	204.3<ref name="EngineeringToolbox-858">"Thermal Conductivity of Metals". www.engineeringtoolbox.com.</ref>-205<ref name="HyperPhysics"/>-220<ref name="EngineersEdge">LLC., Engineers Edge. "Thermal Properties of Metals, Conductivity, Thermal Expansion, Specific Heat - Engineers Edge". www.engineersedge.com.</ref>-237<ref name="Hukseflux"/><ref name="Wikipedia-Th">Thermal conductivities of the elements (data page)</ref><ref name="ElectroIQ"/><ref name="GoodFellow-Aluminium">"Aluminium - Goodfellow, online source, sources, small quantity, quantities". Archived from the original on 13 November 2008. Retrieved 13 November 2008.</ref>-250<ref name="EngineeringToolbox-429"/> 214.6<ref name="EngineeringToolbox-858"/> 249.3<ref name="EngineeringToolbox-858"/> CRC Aluminum 99.996+% Pure Aluminum 780 1550 2320 3080 3810 4510 5150 5730 6220 6610 6900 7080 7150 7130 7020 6840 6350 5650 4000 2850 2100 1600 1250 1000 670 500 400 340 300 247 237 235 236 237 240 240 237 232 226 220 213 List<ref name="Weast" />	293<ref name="Hukseflux"/><ref name="EngineeringToolbox-858"/>-298<ref name="EngineeringToolbox-429"/><ref name="Wikipedia-Th"/><ref name="GoodFellow-Aluminium"/> 366<ref name="EngineeringToolbox-858"/> 478<ref name="EngineeringToolbox-858"/> 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 18 20 25 30 35 40 45 50 60 70 80 90 100 150 200 250 273 300 350 400 500 600 700 800 900	37,450,000<ref name="GoodFellow-Aluminium"/> - 37,740,000<ref name="Wikipedia-El">Electrical resistivities of the elements (data page)</ref> Cryogenic: up to 1.858 ⋅ 1011 at 4.2 K.<ref>Amundsen, T. and Olsen T., Phil. Mag., 11 (111), 561-74, 1965 in TPRC Data Series Volume 1 page 5.</ref><ref name="TPRC1G" /> Formula Values 3.85 ⋅ 107 at 273.15K; 3.45 ⋅ 107 at 300K; 2.50 ⋅ 107 at 400K.<ref name="Serwayohms" />	This material is superconductive (electrical) at temperatures below 1.183 Kelvins. Weast page E-78<ref name="Weast" />
Aluminum,<ref name="Aluminium or aluminum"/> ultrapure	TPRC Aluminum 99.9999% Pure Aluminum 4102 8200 12100 15700 18800 21300 22900 23800 24000 23500 22700 20200 17600 11700 7730 3180[?] 2380 1230 754 532 414 344 302 248 237 236 237 240 237 232 226 220 213 List<ref name="TPRC1G" />	1 2 3 4 5 6 7 8 9 10 11 13 15 20 25 30 40 50 60 70 80 90 100 150 200 273.2 300 400 500 600 700 800 900		These are not measured values. Very high thermal conductivity measurements up to 22,600 w m−1 K−1 were reported by Fenton, E.W., Rogers, J.S. and Woods, S.D. in reference 570 on page 1458, 41, 2026–33, 1963. The data is listed on pages 6 through 8 and graphed on page 1 where Fenton and company are on curves 63 and 64. Next the government-recommended values are listed and graphed on page 9. Thermophysical Properties Research Center. Performing Organization: Purdue University. Controlling Organization: Defense Logistics Agency. Documented summaries from numerous scientific journals, etc. and critical estimates. 17000 pages in 13 volumes.
Aluminium nitride	170<ref name="ElectroIQ">Greg Becker; Chris Lee & Zuchen Lin (July 2005). "Thermal conductivity in advanced chips — Emerging generation of thermal greases offers advantages". Advanced Packaging: 2–4. Archived from the original on 2 January 2013. Retrieved 4 March 2008.</ref>-175<ref name="GoodFellow-AluminiumNitride">http://www.goodfellow.com/E/AluminiumNitride'.html</ref>-190<ref name="GoodFellow-AluminiumNitride"/>	293<ref name="GoodFellow-AluminiumNitride"/>	1×10^−11<ref name="GoodFellow-AluminiumNitride"/>
Aluminium oxide	Pure 26<ref name="GoodFellow-Alumina">www.goodfellow.com. "Alumina - online catalogue source - supplier of research materials in small quantities - Goodfellow". www.goodfellow.com.</ref>-30<ref name="Hukseflux"/>-35<ref name="GoodFellow-Alumina"/>-39<ref name="ElectroIQ"/>-40<ref name="AZoM">Alumina (Al2O3) - Physical, Mechanical, Thermal, Electrical and Chemical Properties - Supplier Data by Ceramaret Archived 8 August 2007 at the Wayback Machine</ref> NBS, Ordinary 27 16 10.5 8.0 6.6 5.9 5.6 5.6 6.0 7.2 List<ref name="Alumina101">R.W.Powell, C.Y.Ho and P.E.Liley, Thermal Conductivity of Selected Materials, NSRDS-NBS 8, Issued 25 November 1966, pages 73-83>Link Text</ref> Slip Cast R 11.1 10.0 8.37 7.95 6.90 5.86 5.65 5.65 5.65 List: Kingery, TPRC II page 99 curve 7 ref.5<ref name="TPRC2G" /> Sapphire R 15.5 13.9 12.4 10.6 8.71 8.04 7.68 7.59 7.61 7.86 8.13 8.49 List: Kingery, TPRC II page 96 curve 19 ref.72<ref name="TPRC2G" />	293<ref name="Hukseflux"/><ref name="GoodFellow-Alumina"/><ref name="AZoM"/> 400 600 800 1000 1200 1400 1600 1800 2000 2200 613.2 688.2 703.2 873.2 943.2 1033.2 1093 1203.2 1258.2 591.5 651.2 690.2 775.2 957.2 1073.2 1173.2 1257.2 1313.2 1384.2 14X9.2 1508.2	1×10^−12-<ref name="GoodFellow-Alumina"/><ref name="AZoM"/>	The NBS recommended ordinary values are for 99.5% pure polycrystalline alumina at 98% density.<ref name="Alumina101" /> Slip Cast Values are taken from Kingery, W.D., J. Am Ceram. Soc., 37, 88–90, 1954, TPRC II page 99 curve 7 ref. 5 page 1159.<ref name="TPRC2G" /> Sapphire values are taken from Kingery, W.D. and Norton, F.H., USAEC Rept. NYO-6447, 1–14, 1955, TPRC II pages 94, 96, curve 19 ref. 72 page 1160.<ref name="TPRC2G" /> Errata: The numbered references in the NSRDS-NBS-8 pdf are found near the end of the TPRC Data Book Volume 2 and not somewhere in Volume 3 like it says.<ref name="TPRC2G" />
Aluminium oxide, porous	22% Porosity 2.3<ref name="Alumina101" />	Constant 1000-1773<ref name="Alumina101" />		This is number 54 on pages 73 and 76. Shakhtin, D.M. and Vishnevskii, I.I., 1957, interval 893-1773 Kelvins.<ref name="Alumina101" />
Ammonia, saturated	0.507<ref name="EngineeringToolbox-1260"/>	300<ref name="EngineeringToolbox-1260"/>
Argon	0.016<ref name="EngineeringToolbox-429"/>-0.01772<ref name="Wikipedia-Th"/>-0.0179<ref name="Wikipedia-Th"/><ref name="EngineersEdge-Gases">LLC., Engineers Edge. "Thermal Conductivity of Gases Chart - Engineers Edge - www.engineersedge.com". www.engineersedge.com.</ref>	298<ref name="EngineeringToolbox-429"/><ref name="Wikipedia-Th"/>-300<ref name="Wikipedia-Th"/><ref name="EngineersEdge-Gases"/>
Basalt	Stephens Basalt Sample NTS No. 1 R 1.76 1.62 1.80 1.84 1.63 1.84 1.58 1.92 1.84 Sample NTS No. 2 R 1.36 1.45 1.53 1.67 1.72 1.57 1.60 1.63 List<ref name="TPRC2G" /> Robertson Basalt 5% olivine, 100% solidity* & 5MPa pressure Intrinsic: K = 2.55 W ⋅ m−1 ⋅ K−1 Air in Pores: K =1.58 Water in Pores: K = 1.97 List: Robertson pages 7, 11 & 13.<ref name="Robertson" />	576 596 658 704 748 822 895 964 1048 442 483 529 584 623 711 762 858 300		These measurements of two samples of NTS Basalt were credited to some D.R. Stephens, USAEC UCRL — 7605, 1–19, 1963. They are reported in the TPRC Data Series in Volume 2 on pages 798 and 799. Ki-iti Horai, Thermal conductivity of Rock Forming minerals, Journal of Geophysical Research, Volume 76, Issue 5, pages 1278 — 1308, February 10, 1971. Solidity ≡ The ratio of the volume of solid to the bulk volume, or the ratio of bulk density to solid grain density, dB/dG. Robertson, p. 5.
Beryllium oxide	218<ref name="ElectroIQ"/>-260<ref name="GoodFellow-Beryllia">www.goodfellow.com. "Beryllia - online catalogue source - supplier of research materials in small quantities - Goodfellow". www.goodfellow.com.</ref>-300<ref name="GoodFellow-Beryllia"/> TPRC Recommended 424 302 272 196 146 111 87 70 57 47 39 33 28.3 24.5 21.5 19.5 18.0 16.7 15.6 15.0 List<ref name="TPRC2G" />	293<ref name="GoodFellow-Beryllia"/> 200 273.2 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000	1×10^−12<ref name="GoodFellow-Beryllia"/>	Recommended values are found on page 137 of volume 2, TPRC Data Series, 1971<ref name="TPRC2G" />
Bismuth	7.97<ref name="Wikipedia-Th"/>	300<ref name="Wikipedia-Th"/>
Brass Cu63%	125<ref name="GoodFellow-Brass">www.goodfellow.com. "Brass - online catalogue source - supplier of research materials in small quantities - Goodfellow". www.goodfellow.com.</ref>	296<ref name="GoodFellow-Brass"/>	15,150,000<ref name="GoodFellow-Brass"/> - 16,130,000<ref name="GoodFellow-Brass"/>	(Cu63%, Zn37%)
Brass Cu70%	109<ref name="HyperPhysics"/><ref name="GoodFellow-Brass'">"Brass - online catalogue source, sources, small quantity and quantities from Goodfellow". Archived from the original on 17 June 2011. Retrieved 28 December 2009.</ref> - 121<ref name="GoodFellow-Brass'"/>	293<ref name="HyperPhysics"/>-296<ref name="GoodFellow-Brass'"/>	12,820,000<ref name="GoodFellow-Brass'"/> - 16,130,000<ref name="GoodFellow-Brass'"/>	(Cu70%, Zn30%)
Brick	0.15<ref name="HyperPhysics"/>-0.6<ref name="HyperPhysics"/>-0.69<ref name="EngineeringToolbox-429"/>-1.31<ref name="EngineeringToolbox-429"/> British 2016: Inner leaf (1700 kg/m3): 0.62<ref name="LBU" /> Outer leaf (1700 kg/m3): 0.84<ref name="LBU" /> 1920s Values: Brick #1: 0.674<ref name="TPRC2G" /> Brick #2: 0.732<ref name="TPRC2G" />	293<ref name="HyperPhysics"/>-298<ref name="EngineeringToolbox-429"/> 373.2<ref name="TPRC2G" /> 373.2<ref name="TPRC2G" />		Brick #1: 76.32% SiO2, 21.96%Al2O3, 1.88%Fe2O3 traces of CaO and MgO, commercial brick, density 1.795 g ⋅ cm−3. Brick #2: 76.52%SiO2, 13.67%Al2O3, 6.77%Fe2O3, 1.77%CaO, 0.42%MgO, 0.27%MnO, no specified density. Judging from the descriptions the TPRC has put the wrong labels on their bricks, and if that is the case then Brick #1 is "Common Brick" and Brick #2 is "Red Brick." Tadokoro, Y., Science Repts. Tohoku Imp. Univ., 10, 339–410, 1921, TPRC pages 493 & 1169.<ref name="TPRC2G" />
Bronze	26<ref name="EngineersEdge"/> 42<ref name="GoodFellow-Bronze">www.goodfellow.com. "Bronze - online catalogue source - supplier of research materials in small quantities - Goodfellow". www.goodfellow.com.</ref>-50<ref name="EngineeringToolbox-858"/><ref name="GoodFellow-Bronze"/>	293<ref name="EngineeringToolbox-858"/>-296<ref name="GoodFellow-Bronze"/>	5,882,000<ref name="GoodFellow-Bronze"/> - 7,143,000<ref name="GoodFellow-Bronze"/>	Sn25%<ref name="EngineersEdge"/> (Cu89%, Sn11%)<ref name="GoodFellow-Bronze"/>
Calcium silicate	0.063<ref name="EngineeringToolbox-1171">"Calcium Silicate Insulation". www.engineeringtoolbox.com.</ref>	373<ref name="EngineeringToolbox-1171"/>
Carbon dioxide	0.0146<ref name="EngineeringToolbox-429"/>-0.01465<ref name="AirLiquide-26">"Carbon dioxide". 10 July 2018.</ref>-0.0168<ref name="EngineersEdge-Gases"/> (sat. liquid 0.087<ref name="EngineeringToolbox-1000">"Carbon Dioxide Properties". www.engineeringtoolbox.com.</ref>)	298<ref name="EngineeringToolbox-429"/>-273<ref name="AirLiquide-26"/>-300<ref name="EngineersEdge-Gases"/> (293<ref name="EngineeringToolbox-1000"/>)
Carbon nanotubes, bulk	2.5 (multiwall)<ref name="A.Agarwal, S.R p.8">"Carbon nanotubes : Reinforced metal matrix composites" by A.Agarwal, S.R.Bakshi and D.Lahiri, CRC Press, 2011 (ch.1, p.8, chart 1.1 : physical properties of carbon materials )</ref> - 35 (single wall, disordered mats)<ref name="A.Agarwal, S.R p.8"/> - 200(single wall, aligned mats)<ref name="A.Agarwal, S.R p.8"/>	300<ref name="A.Agarwal, S.R p.8"/>		"Bulk" refers to a group of nanotubes either arranged or disordered, for a single nanotube, see "carbon nanotube, single".<ref name="A.Agarwal, S.R p.8"/>
Carbon nanotube, single	3180 (multiwall)<ref name="CNT">"Carbon Nanotubes: Thermal Properties" (PDF). Archived from the original (PDF) on 20 February 2009. Retrieved 6 June 2009.</ref><ref name="Kim"> Kim, P.; Shi, L.; Majumdar, A.; McEuen, P. L.; et al. (1 June 2001). "Thermal transport measurements of individual multiwalled nanotubes". Physical Review Letters. 87 (21): 215502–215506. arXiv:cond-mat/0106578. Bibcode:2001PhRvL..87u5502K. doi:10.1103/PhysRevLett.87.215502. PMID 11736348. S2CID 12533685.</ref>-3500 (single wall)<ref name="Pop"> Pop, Eric; Mann, David; Wang, Qian; Goodson, Kenneth; Dai, Hongjie; et al. (22 December 2005). "Thermal conductance of an individual single-wall carbon nanotube above room temperature". Nano Letters. 6 (1): 96–100. arXiv:cond-mat/0512624. Bibcode:2006NanoL...6...96P. doi:10.1021/nl052145f. PMID 16402794. S2CID 14874373.</ref> (SWcalc.6,600<ref name="CNT"/><ref name="Berber">Berber, Savas; Kwon, Young-Kyun; Tománek, David (23 February 2000). "Unusually high thermal conductivity of carbon nanotubes". Physical Review Letters. 84 (20): 4613–4616. arXiv:cond-mat/0002414. Bibcode:2000PhRvL..84.4613B. doi:10.1103/PhysRevLett.84.4613. PMID 10990753. S2CID 9006722.</ref>-37,000<ref name="CNT"/><ref name="Berber"/>)	320<ref name="CNT"/><ref name="Kim"/>-300<ref name="Pop"/> (300<ref name="CNT"/><ref name="Berber"/>-100<ref name="CNT"/><ref name="Berber"/>)	(Lateral)10−16<ref name="Li">Li, Qingwen; Li, Yuan; Zhang, X. F.; Chikkannanavar, S. B.; Zhao, Y. H.; Dangelewicz, A. M.; Zheng, L. X.; Doorn, S. K.; et al. (2007). "Structure-Dependent Electrical Properties of Carbon Nanotube Fibers". Advanced Materials. 19 (20): 3358–3363. doi:10.1002/adma.200602966. S2CID 12904712.</ref> - (Ballistic)108<ref name="Li"/>)	values only for one single SWNT(length:2.6 μm, diameter:1.7 nm) and CNT. "Single", as opposed to "bulk" quantity (see "carbon nanotubes, bulk") of many nanotubes, which should not be confused with the denomination of nanotubes themselves which can be singlewall(SWNT) or multiwall(CNT)<ref name="A.Agarwal, S.R p.8"/>
Cerium dioxide	1.70 1.54 1.00 0.938 0.851 0.765 List: TPRC II pp. 145–6<ref name="TPRC2G" />	1292.1 1322.1 1555.9 1628.2 1969.2 2005.9		Pears, C.D., Project director, Southern Res. Inst. Tech. Documentary Rept. ASD TDR-62-765, 20-402, 1963. TPRC Vol 2, pages 145, 146 and 1162<ref name="TPRC2G" />
Concrete	0.8<ref name="HyperPhysics"/> - 1.28<ref name="Hukseflux"/> - 1.65<ref name="ISO 10456">International Standard EN-ISO 10456:2007 'Building materials and products - Hygrothermal properties - Tabulated design values and procedures for determining declared and design thermal values'</ref> - 2.5<ref name="ISO 10456"/>	293<ref name="Hukseflux"/>		~61-67%CaO
Copper, commercial	Wright, W. H., M. S. Thesis: Sample 1 L 423 385 358 311 346 347 350 360 Sample 2 L 353 360 366 363 365 Lists: TPRC I page 75 curve 129<ref name="TPRC1G" /> Taga, M., periodical First run: 378 Second run: 374 Third run: 378 Fourth run: 382 List: TPRC I page 75 curve 129<ref name="TPRC1G" />	80.06 95.34 115.62 135.53 159.46 181.56 198.35 217.30 198.53 220.90 240.88 257.38 275.40 363.2 363.2 363.2 363.2		Wright, W. H., M. S. Thesis, Georgia Institute of Technology, 1–225, 1960. TPRC Data Series Volume 1, pages 75 and 80 curve 129, ref. page 1465.<ref name="TPRC1G" /> Taga, commercial grade, 99.82% purity, density 8.3 g⋅cm−3. Taga, M., [Bull?], Japan Soc. Mech. Engrs., 3 (11) 346–52, 1960. TPRC Data Series Vol 1, pages 74, 79 and 1459.<ref name="TPRC1G" />
Copper, pure	385<ref name="HyperPhysics"/>-386<ref name="EngineeringToolbox-858"/><ref name="EngineersEdge"/>-390<ref name="Hukseflux"/>-401<ref name="EngineeringToolbox-429"/><ref name="Wikipedia-Th"/><ref name="GoodFellow-Copper"/> 368.7<ref name="EngineeringToolbox-858"/> 353.1<ref name="EngineeringToolbox-858"/> 1970s values: TPRC (American) 2870 13800 19600 10500 4300 2050 1220 850 670 570 514 483 413 401 398 392 388 383 377 371 364 357 350 342 334 List<ref name="TPRC1G">Touloukian, Powell, Ho and Klemens, Purdue Research Foundation, TPRC Data Series Volume 1 (1970): http://www.dtic.mil/dtic/tr/fulltext/u2/a951935.pdf Retrieved 14:46 AM 15 May 2018 (CET).</ref> The Soviet Union 403<ref name="GSE593">Great Soviet Encyclopedia, 3rd Edition (Moscow 1976) in English Translation, New York: Macmillan Inc., 1980, volume 25 page 593.</ref> 1960s Values Thin Copper Foil*: 126.8 202.3 295.9 400.2 List<ref>Lindenfeld, P., Lynton, E.S. and Souten, R, Phys. Letter, 19--: 265, 1965 in TPRC Volume 1, pages 75 and 80</ref><ref name="TPRC1G" />	293<ref name="EngineeringToolbox-429"/><ref name="Hukseflux"/><ref name="Wikipedia-Th"/><ref name="GoodFellow-Copper"/><ref name="HyperPhysics"/><ref name="EngineeringToolbox-858"/> 573<ref name="EngineeringToolbox-858"/> 873<ref name="EngineeringToolbox-858"/> 1 5 10 20 30 40 50 60 70 80 90 100 200 273 300 400 500 600 700 800 900 1000 1100 1200 1300 273.15 0.427 0.671 0.981 1.322	59,170,000<ref name="GoodFellow-Copper"/> - 59,590,000<ref name="Wikipedia-El"/> Formula Values: 6.37 ⋅ 107 at 273.15 K; 5.71 ⋅ 107 at 300K; 4.15 ⋅ 107 at 400K.<ref name="Serwayohms">Serway, Raymond, Physics for Scientists and Engineers, Saunders College Publishing, 1983, page 496.</ref>	International Annealed Copper Standard (IACS) pure =1.7×10−8Ω•m =58.82×106Ω−1•m−1 For main article, see: Copper in heat exchangers. The TPRC recommended values are for well annealed 99.999% pure copper with residual electrical resistivity of ρ0=0.000851 μΩ⋅cm. TPRC Data Series volume 1 page 81.<ref name="TPRC1G" /> Out of 138 samples in the TPRC Data Series on the thermal conductivity of copper there is only one foil and that one was only measured at very low temperatures where other coppers also demonstrated extreme deviance. The blurred up reference to it on page 1465 looks like Landenfeld, P., Lynton, E.A. and Souten, R., Phys. Letters, Volume 19 page 265, 1965.
Cork	0.04<ref name="HyperPhysics"/> - 0.07<ref name="Hukseflux"/> 1940s values: Density=0.195 g cm−3 L 0.0381 0.0446 Density=0.104 g cm−3 L 0.0320 0.0400 List: Rowley, F.B. and others in TPRC II page 1064 & 1067 curves 1 & 3 ref 109.<ref name="TPRC2G" />	293<ref name="Hukseflux"/> --- 222.0 305.5 222.0 305.5		1940s values are for oven dried cork at specified densities: Rowley, F.B., Jordan, R.C. and Lander, R.M., Refrigeration Engineering, 53, 35–9. 1947, TPRC pages 1064, 1067 & 1161.<ref name="TPRC2G" />
Cotton or Plastic Insulation-foamed	0.03<ref name="EngineeringToolbox-429"/><ref name="Hukseflux"/>	293<ref name="Hukseflux"/>
Diamond, impure	1,000<ref name="HyperPhysics"/><ref name="CRC">CRC handbook of chemistry and physics(subscription required)(HTTP cookies required)</ref>	273<ref name="CRC"/> - 293<ref name="HyperPhysics"/>	1×10^−16~<ref name="Wikipedia">Other references listed within Wikipedia (this table may not be cited, pure elements are sourced from Chemical elements data references, otherwise an in-table linked-page must list the relevant references)</ref>	Type I (98.1% of Gem Diamonds) (C+0.1%N)
Diamond, natural	2,200<ref name="Anthony1990">Anthony, T. R.; Banholzer, W. F.; Fleischer, J. F.; Wei, Lanhua; Kuo, P. K.; Thomas, R. L.; Pryor, R. W. (27 December 1989). "Thermal conductivity of isotopically enriched 12C diamond". Physical Review B. 42 (2): 1104–1111. Bibcode:1990PhRvB..42.1104A. doi:10.1103/PhysRevB.42.1104. PMID 9995514.</ref>	293<ref name="Anthony1990"/>	1×10^−16~<ref name="Wikipedia"/>	Type IIa (99%12C and 1%13C)
Diamond, isotopically enriched	3,320<ref name="Anthony1990"/>-41,000<ref name="CNT"/><ref name="PNU">Wei, Lanhua; Kuo, P. K.; Thomas, R. L.; Anthony, T. R.; Banholzer, W. F. (16 February 1993). "Thermal conductivity of isotopically modified single crystal diamond". Physical Review Letters. 70 (24): 3764–3767. Bibcode:1993PhRvL..70.3764W. doi:10.1103/PhysRevLett.70.3764. PMID 10053956.</ref> (99.999% 12C calc.200,000<ref name="PNU"/>)	293<ref name="Anthony1990"/>-104<ref name="CNT"/><ref name="PNU"/> (~80<ref name="PNU"/>)	(Lateral)10−16<ref name="Wikipedia"/> - (Ballistic)108<ref name="Wikipedia"/>	Type IIa isotopically enriched (>99.9%12C)
Dolomite, NTS dolomite	Specimen No. 1 R 1.08 1.14 Specimen No. 2 R 1.27 1.26 List TPRC 2 pp 811–12.<ref name="TPRC2G" />	521 835 523 833		Specimen No. 1 had a fine-grained appearance; 2.25 inches O.D.. 0.375 in. I.D., 12 in. long; obtained from exploratory dolomite hole No. 1, dolomite hill at level of 200 feet; density 2.80 g cm−3. Method: Radial heat flow [TPRC Volume 1 page 23a]. Stephens, D. R., USAEC UCRL — 7605. 1–19, 1963 in TPRC Data Series Volume 2, pp. 811–12.<ref name="TPRC2G" />
Epoxy, thermally conductive	0.682<ref>"MG 832TC Thermally Conductive Epoxy".</ref> - 1.038 - 1.384<ref>"OMEGABOND OB-100/101/200 Thermally Conductive Epoxies" (PDF).</ref> - 4.8<ref name="Tong1994">Timothy W. Tong (8 June 1994). Thermal Conductivity 22. CRC. p. 718. ISBN 978-1-56676-172-7.</ref>
Eclogite	Roberston Eclogite, 5MPa 0.6437 0.2574 List from graph: Roberston page 39<ref name="Robertson" />	373 573		Some more recent measurements about ecolgite at high pressures and elevated temperatures (up to 14GPa and 1000K) have been reported by Chao Wang and others in a 2014 article about omphacite, jadeite and diopside which is free on the internet<ref>Chao Wang, Akira Yoneda, Masahiro Osako, Eiji Ito, Takashi Yoshino, and Zhenmin Jin: "Measurement of thermal conductivity of omphacite, jadeite, and diopside up to 14 GPa and 1000 K: Implication for the role of eclogite in subduction slab", Journal of Geophysical Research -Solid Earth Volume 119, Issue 8, August 2014 pages 6277-6287 https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2014JB011208#jgrb50785-sec-0005-title retrieved March 13, 2020 at about 11:00 PM EST</ref>
Ethylene glycol	TPRC 0.2549 0.2563 0.2576 0.2590 0.2603 0.2616 0.2630 0.2643 List<ref name="TPRC2G" /> CRC 0.2645 0.2609 0.2695 List<ref name="Weast" />	280 290 300 310 320 330 340 350 288.15 293.15 353.15		The TPRC values are posted in Volume 3 on page 177 and the CRC estimates are found in the handbook on page E-4.
Expanded polystyrene – EPS	0.03<ref name="EngineeringToolbox-429"/>-0.033<ref name="EngineeringToolbox-429"/><ref name="HyperPhysics"/><ref name="CRC"/> ((PS Only)0.1<ref name="GoodFellow-Polystyrene">www.goodfellow.com. "Polystyrene - online catalogue source - supplier of research materials in small quantities - Goodfellow". www.goodfellow.com.</ref>-0.13<ref name="GoodFellow-Polystyrene"/>)	98<ref name="CRC"/>-298<ref name="EngineeringToolbox-429"/><ref name="CRC"/> (296<ref name="GoodFellow-Polystyrene"/>)	1×10^−14<ref name="GoodFellow-Polystyrene"/>	(PS+Air+CO2+CnH2n+x)
Extruded polystyrene – XPS	0.029 - 0.39	98-298
Fat	Beef fat 0.354 0.175 Bone fat 0.186 Pig fat 0.238 List<ref name="TPRC2G" />	293.2 333.2 293.2 293.2		The fats were discovered by Lapshin A. and Myasnaya Ind., SSSR. Volume 25 (2) pp. 55–6, 1954. and reported in volume two of the TPRC Data Series on page 1072.<ref name="TPRC2G" />
Fiberglass or foam-glass	0.045<ref name="Hukseflux"/>	293<ref name="Hukseflux"/>
Gabbro	Sligachan Gabbro 2.55 2.47 List<ref name="TPRC2G" /> Generic Gabbro* 2.06 ± 0.2 List: Birch and Clark in Robertson page 31<ref name="Robertson" />	309.4 323.1 300		Specimen 5 cm in diameter and 2 cm long from Sligachan Skye, density 3.1 g ⋅ cm−1. Nancarrow, H.A., Proc. Phys. Soc. (London) 45, page 447–61, 1933 in TPRC Data Series Volume 2 page 816.<ref name="TPRC2G" /> This summary came from three samples in 1940.
Gallium arsenide	56<ref name="CRC"/>	300<ref name="CRC"/>
Gasket	Cardboard 0.210<ref name="YACG" /> Transite P 0.770 0.757 0.749 0.742 0.739 0.736 0.736 0.736 0.733 0.731 List: Smith, W.K. in TPRC II page 1107 curve 1 ref 390.<ref name="TPRC2G" />	291.15 338.7 366.5 394.3 422.1 449.8 477.6 505.4 533.2 560.9 588.7		The cardboard is in Yarwood and Castle on page 36 and the Transite is credited to some W.K. Smith, NOTS TP2624, 1 — 10, 1961. [AD 263771]. Transite was discovered in 1961 and is a type of asbestos — cement board with a density of 0.193 — 0.1918 grams⋅cm−1. TPRC Data Series, Volume 2, page 1107<ref name="TPRC2G" /> For rubber gasket see Rubber.
Glass	0.8<ref name="HyperPhysics"/>-0.93<ref name="Hukseflux"/> (SiO2pure1<ref name="ElectroIQ"/>-SiO296%1.2<ref name="GoodFellow-Silica">"Silica - Goodfellow, online source, sources, small quantity, quantities". Archived from the original on 16 November 2008. Retrieved 28 December 2009.</ref>-1.4<ref name="GoodFellow-Silica"/>) Pyrex 7740, Air Force, 1961 P 1.35 1.34 1.39 1.42 1.59 1.45 1.43 1.56 1.66 1.68 1.91 1.90 List: TPRC II pages 926-9 curve 81<ref name="TPRC2G" /> Pyrex 7740, NBS, 1963 L 1.11 1.16 1.22 1.27 1.33 1.38 1.43 List: TPRC II pages 926-9 curve 76<ref name="TPRC2G" /> Pyrex 7740, NBS, 1966 0.58 0.90 1.11 1.25 1.36 1.50 1.62 1.89 List<ref name="pyrex">[R.W.Powell, C.Y.Ho and P.E.Liley, Thermal Conductivity of Selected Materials, NSRDS-NBS 8, 25 November 1966, pp. 67, 68, and 89. https://www.nist.gov/data/nsrds/NSRDS-NBS-8.pdf Link text]</ref>	293<ref name="Hukseflux"/><ref name="HyperPhysics"/><ref name="GoodFellow-Silica"/> 297 300 306 319 322 322 329 330 332 336 345 356 273.2 323.2 373.2 423.2 473.2 523.2 573.2 100 200 300 400 500 600 700 800	10−14<ref name="serway">Serway, Raymond A. (1998). Principles of Physics (2nd ed.). Fort Worth, Texas; London: Saunders College Pub. p. 602. ISBN 978-0-03-020457-9.</ref><ref name="Griffiths">Griffiths, David (1999) [1981]. "7. Electrodynamics". In Alison Reeves (ed.). Introduction to Electrodynamics (3rd ed.). Upper Saddle River, New Jersey: Prentice Hall. p. 286. ISBN 978-0-13-805326-0. OCLC 40251748.</ref>-10−12<ref name="GoodFellow-Silica"/>-10−10<ref name="serway"/><ref name="Griffiths"/>	<1% Iron oxides In 1966 Pyrex 7740 had a composition of about 80.6% SiO2, 13% B2O3, 4.3% Na2O and 2.1% Al2O3.<ref name="pyrex" /> Similar glasses have a coefficient of linear expansion of about 3 parts per million per Kelvin at 20°Celsius.<ref>T.M.Yarwood & F. Castle, Physical and Mathematical Tables, Glasgow: The University Press, 1970 page 38.</ref> Density [Pyrex 774] ≈ 2.210 g ⋅ cm−3 at 32 °F. Specific heats: 0.128, 0.172, 0.202, 0.238, 0.266, 0.275 Cal. g−1 K−1 at 199.817, 293.16, 366.49, 477.60, 588.72 & 699.83 Kelvins respectively. Lucks, C.F., Deem, H.W. and Wood, W.D. in TPRC V pages 1232-3<ref name="TPRC5G">"Thermophysical Properties Research Center Data Series Volume 5" at https://apps.dtic.mil/dtic/tr/fulltext/u2/a951939.pdf retrieved February 2, 2019 at 11:20PM EST.</ref> Errata: The numbered references in the NSRDS-NBS-8 pdf are found near the end of the TPRC Data Book Volume 2 and not somewhere in Volume 3 like it says.<ref name="TPRC2G" />
Glycerol	0.285<ref name="EngineeringToolbox-1260"/>-0.29<ref name="Hukseflux"/>	300<ref name="EngineeringToolbox-1260"/>-293<ref name="Hukseflux"/>
Gold, pure	314<ref name="HyperPhysics"/>-315<ref name="EngineeringToolbox-858"/>-318<ref name="Wikipedia-Th"/><ref name="EngineersEdge"/><ref name="GoodFellow-Gold">www.goodfellow.com. "Gold - online catalogue source - supplier of research materials in small quantities - Goodfellow". www.goodfellow.com.</ref> 1970s values: 444 885 2820 1500 345 327 318 315 312 309 304 298 292 285 List<ref name="TPRC1G" />	293<ref name="EngineeringToolbox-858"/>-298<ref name="Wikipedia-Th"/><ref name="GoodFellow-Gold"/> 1 2 10 20 100 200 273.2 300 400 500 600 700 800 900	45,170,000<ref name="Wikipedia-El"/> - 45,450,000<ref name="GoodFellow-Gold"/>	1970s values are found on page 137, TPRC Data Series volume 1 (1970).<ref name="TPRC1G" />
Granite	1.73<ref name="Marble-Institute">Marble Institute of America (2 values are usually given: the highest and lowest test scores)</ref> - 3.98<ref name="Marble-Institute"/> Nevada Granite R 1.78 1.95 1.86 1.74 1.80 Scottish Granite L 3.39 3.39 List<ref name="TPRC2G" /> Westerly Granite 2.4(63) 2.2(83) 2.1(44) Barre Granite 2.8(23) 2.5(18) 2.3(10) Rockport-1* 3.5(57) 3.0(31) 2.7(12) Rockport-2* 3.8(07) 3.2(11) 2.8(37) List: Birch and Clark in Robertson page 35.<ref name="Robertson" />	368 523 600 643 733 306.9 320.2 273.15 373.15 473.15 273.15 373.15 473.15 273.15 373.15 473.15 273.15 373.15 473.15		(72%SiO2+14%Al2O3+4%K2O etc.) Scottish Granite: This is granite from May Quarry in Aberdeenshire. Nancarrow, H. A., Proc. Phys. Soc. (London). 45, 447–61, 1933, TPRC II pages 818 and 1172.<ref name="TPRC2G" /> Nevada Granite: This granite is 34%v plagioclase, 28%v ortheoclase, 27%v quartz and 9%v biotite. Stephens, D. R., USAEC UCRL-7605, 1–19, 1963, TPRC II pages 818 and 1172.<ref name="TPRC2G" /> A 1960 report on the Nevada granite (Izett, USGS) is posted on the internet but the very small numbers there are hard to understand.<ref>Izett, G. A., "Granite" Exploration Hole, Area 15, Nevada Test Site, NYE County, Nevada -- Interim Report, Part C, Physical Properties, January 1960>http://www.pubs.usgs.gov/tem/0836c.pdf</ref> Robertson says that Rockport-1 has 25% Quartz and Rockport-2 has 33% Quartz and he usually talks in volume percent. Robertson page 35.
Granite, ΔP	Barre Granite* Wet 50 bar* 2.8 2.5 2.3 2.1 1000 bar 3.2 2.8 2.6 2.4 5000 bar 4.5 4.0 3.7 3.4 Dry 50 bar 2.8(23) 2.5(18) 2.3(10) 2.1(44) 1000 bar 2.8(76) 2.5(65) 2.3(53) 2.1(84) 5000 bar 3.0(91) 2.7(57) 2.5(29) 2.3(47) List: Robertson pages 35, 59-61<ref name="Robertson" />	273.15 373.15 473.15 573.15 273.15 373.15 473.15 573.15 273.15 373.15 473.15 573.15 273.15 373.15 473.15 573.15 273.15 373.15 473.15 573.15 273.15 373.15 473.15 573.15		Small granite pillars have failed under loads that averaged out to about 1.43 ⋅ 108 Newtons/meter2 and this kind of rock has a sonic speed of about 5.6 ± 0.3 ⋅ 103 m/sec (stp), a density of about 2.7 g/cm3 and specific heat ranging from about 0.2 to 0.3 cal/g °C through the temperature interval 100-1000 °C [Stowe pages 41 & 59 and Robertson pages 70 & 86].<ref>Stowe, Richard L., “Strength and Deformation Properties of Granite, Basalt, Limestone and Tuff at Various Loading Rates,” 1969, Army Engineer Waterways Experiment Station Vicksburg MS, AD0684358 at https://apps.dtic.mil/docs/citations/AD0684358 with full text at https://apps.dtic.mil/dtic/tr/fulltext/u2/684358.pdf retrieved February 9, 2019 at 6:45 PM EST.</ref><ref name="Robertson" /> In this particular case the solidity of the granite is 0.966. A bar is 105 Pa or 105 Newtons/meter2 and pressures around 5000 bar should normally be found at depths of about 19 to 23 kilometers.
Graphene	(4840±440)<ref name="Balandin">Balandin, Alexander A.; Ghosh, Suchismita; Bao, Wenzhong; Calizo, Irene; Teweldebrhan, Desalegne; Miao, Feng; Lau, Chun Ning; et al. (20 February 2008). "Superior Thermal Conductivity of Single-Layer Graphene". Nano Letters. 8 (3): 902–907. Bibcode:2008NanoL...8..902B. doi:10.1021/nl0731872. PMID 18284217. S2CID 9310741.</ref> - (5300±480)<ref name="Balandin"/>	293<ref name="Balandin"/>	100,000,000<ref name="UMDnews">Physicists Show Electrons Can Travel More Than 100 Times Faster in Graphene Archived 19 September 2013 at the Wayback Machine</ref>
Graphite, natural	25-470<ref name="Azom.com">"Graphite (C) - Classifications, Properties and Applications of Graphite". AZoM.com. 10 September 2002.</ref> 146-246 (longitudinal), 92-175 (radial)<ref>Buerschaper, Robert A. (1944). "Thermal and Electrical Conductivity of Graphite and Carbon at Low Temperatures". Journal of Applied Physics. 15 (5): 452–454. Bibcode:1944JAP....15..452B. doi:10.1063/1.1707454.</ref>	293<ref name="Azom.com"/>	5,000,000-30,000,000<ref name="Azom.com"/>
Grease, thermally conductive greases	860 Silicone Heat Transfer Compound: 0.66 8616 Super Thermal Grease II: 1.78 8617 Super thermal Grease III: 1.0 List, MG Chemicals<ref>MG Chemicals,Thermally Conductive Grease Comparison Chart https://www.mgchemicals.com/products/greases-and-lubricants/thermal-greases/ retrieved 8 January 2019 at 10:37PM EST</ref>	233.15—473.15 205.15—438.15 205.15—438.15	These thermal greases have low electrical conductivity and their volume resistivities are 1.5⋅1015, 1.8⋅1011, and 9.9⋅109 Ω⋅cm for 860, 8616 and 8617 respectively.	The thermal grease 860 is a silicone oil with a Zinc Oxide filler and 8616 and 8617 are synthetic oils with various fillers including Aluminum Oxide and Boron Nitride. At 25 °C the densities are 2.40, 2.69 and 1.96 g/mL for the greases 860, 8616 and 8617 respectively.
Helium II	≳100000<ref name=enc>Clifford A. Hampel (1968). The Encyclopedia of the Chemical Elements. New York: Van Nostrand Reinhold. pp. 256–268. ISBN 978-0-442-15598-8.</ref> in practice, phonon scattering at solid-liquid interface is main barrier to heat transfer.	2.2		Liquid helium in its superfluid state below 2.2 K
House	American 2016 Wood Product Blow-in, Attic Insulation 0.0440 − 0.0448<ref>Green Fiber Blow-in Attic Insulation at Home Depot 2016>http://www.homedepot.com/catalog/pdfImages/1d/1dcde6e6-eb26-47e1-8223-5f3cc1840add.pdf. Retrieved 29 March 2016 at 11:08 PM (UTC).</ref> FIBERGLAS Blow-in, Attic Insulation 0.0474 − 0.0531<ref>Owens Corning, AttiCat, Product Data Sheet: http://insulation.owenscorning.com/assets/0/428/429/431/af2a2cae-f7c3-43bd-8e88-9313ed87dd2d.pdf. Retrieved 29 March 2016 at 11:10 PM (UTC).</ref> PINK FIBERGLAS Flexible Insulation 0.0336 − 0.0459<ref name="Owens Flexible">Owens Corning, EcoTouch Product Data Sheet: http://insulation.owenscorning.com/assets/0/428/429/431/b507cdf1-d1f4-4e08-930f-9d5e88c6b6ce.pdf. Retrieved 29 March 2016 at 11:11 PM (UTC).</ref> British CONCRETE: General 1.28 (2300 kg/m3) 1.63 (2100 kg/m3 typical floor) 1.40 (2000 kg/m3 typical floor) 1.13 (medium 1400 kg/m3)0.51 (lightweight 1200 kg/m3) 0.38 (lightweight 600 kg/m3) 0.19 (aerated 500 kg/m3) 0.16 PLASTER: (1300 kg/m3) 0.50 (600 kg/m3) 0.16 TIMBER: Timber (650 kg/m3) 0.14 Timber flooring (650 kg/m3) 0.14 Timber rafters 0.13 Timber floor joists 0.13 MISC.: Calcium silicate board (600 kg/m3) 0.17 Expanded polystyrene 0.030 −0.038 Plywood (950 kg/m3) 0.16 Rock mineral wool 0.034 −0.042 List<ref name="LBU">Leeds Beckett University, Virtual Maths: http://www.virtualmaths.org/activities/topic_data-handling/heatloss/resources/thermal-conductivity-of-building-materials.pdf. Retrieved 29 March 2016 at 11:12 PM (UTC).</ref> Wallboard, see Wallboard. 1960s Values Dry Zero − Kapok between burlap or paper density 0.016 g cm−3, TC=0.035 W⋅m−1K−1 Hair Felt − Felted cattle hair density 0.176 g cm−3, TC=0.037 W⋅m−1K−1 density 0.208 g cm−3, TC=0.037 W⋅m−1K−1 Balsam Wool − Chemically treated wood fibre density 0.035 g cm−3, TC=0.039 W⋅m−1K−1 Hairinsul − 50% hair 50% jute density 0.098 g cm−3, TC=0.037 W⋅m−1K−1 Rock Wool − Fibrous material made from rock density 0.096 g cm−3, TC=0.037 W⋅m−1K−1 density 0.160 g cm−3, TC=0.039 W⋅m−1K−1 density 0.224 g cm−3, TC=0.040 W⋅m−1K−1 Glass Wool − Pyrex glass curled density 0.064 g cm−3, TC=0.042 W⋅m−1K−1 density 0.160 g cm−3, TC=0.042 W⋅m−1K−1 Corkboard − No added binder density 0.086 g cm−3, TC=0.036 W⋅m−1K−1 density 0.112 g cm−3, TC=0.039 W⋅m−1K−1 density 0.170 g cm−3, TC=0.043 W⋅m−1K−1 density 0.224 g cm−3, TC=0.049 W⋅m−1K−1 Corkboard − with asphaltic binder density 0.232 g cm−3, TC=0.046 W⋅m−1K−1 Cornstalk Pith Board: 0.035 − 0.043 Cypress density 0.465 g cm−3, TC=0.097 W⋅m−1K−1 White pine density 0.513 g cm−3, TC=0.112 W⋅m−1K−1 Mahogany density 0.545 g cm−3, TC=0.123 W⋅m−1K−1 Virginia pine density 0.545 g cm−3, TC=0.141 W⋅m−1K−1 Oak density 0.609 g cm−3, TC=0.147 W⋅m−1K−1 Maple density 0.705 g cm−3, TC=0.159 W⋅m−1K−1 List<ref name="House">Bureau of Standards Letter Circular No. 227, nd., in Weast, R. C., Editor-in Chief, Handbook of Chemistry and Physics, 48th Edition, 1967-68, Cleveland: The Chemical Rubber Co., 1967, page E-5.</ref>			American 2016: Flexible insulation from Owens Corning includes faced and unfaced rolls of glass wool and with foil.<ref name="Owens Flexible" /> 1960s values: All thermal conductivities from Cypress to Maple are given across the grain.<ref name="House" />
Hydrogen	0.1819<ref>M. J. Assael; S. Mixafendi; W. A. Wakeham (1 July 1986). "The Viscosity and Thermal Conductivity of Normal Hydrogen in the Limit of Zero Density" (PDF). NIST. Retrieved 2 April 2015. {{cite journal}}: Cite journal requires |journal= (help)</ref>	290		Hydrogen gas at room temperature.
Ice	1.6<ref name="HyperPhysics"/>-2.1<ref name="Hukseflux"/>-2.2<ref name="CRC"/>-2.22<ref name="EngineeringToolbox-576">"Ice - Thermal Properties". www.engineeringtoolbox.com.</ref> The Historic Ice Authorities van Duser 1929 2.09 2.161 2.232 2.303 2.374 2.445 Choi & Okos/Bonales 1956 — 2017 2.2199 2.3854 2.6322 2.9603 3.3695 3.8601 Ratcliffe/Bonales 1962 — 2017 2.0914 2.2973 2.5431 2.8410 3.2086 3.6723 List<ref name="Bonales">Bonales, A.C., Rodriguez & P.D. Sanz, Thermal conductivity of ice prepared under different conditions International Journal of Food Properties, 20:sup1, 610-619, (2017) DOI: 10.1080/10942912.2017.1306551 at https://doi.org/10.1080/10942912.2017.1306551. Retrieved January 20, 2019 at 7:12 PM EST.</ref> Clark, S.P. Jr., 1966* 2.092 2.552 List: Clark, S.P. Jr. in Robertson p. 58<ref name="Robertson">Robertson, Eugene C., Thermal Properties of Rocks, United States Department of the Interior Geological Survey, Open-File Report 88-441, 1988 at https://pubs.usgs.gov/of/1988/0441/report.pdf Retrieved January 24, 2019 at 12:08 AM EST</ref>	293<ref name="Hukseflux"/><ref name="HyperPhysics"/> - 273<ref name="CRC"/><ref name="EngineeringToolbox-576"/> 273.15 253.15 233.15 213.15 193.15 173.15 273.15 253.15 233.15 213.15 193.15 173.15 273.15 253.15 233.15 213.15 193.15 173.15 273.15 143.15		Bonales says that his posted formulas are lined up with his old authorities though more recent ones (and Bonales among them) have come to believe that ices that come to low temperatures remember a cooling rate.<ref>Ahmad, N., Thermal Conductivity of Ice in Physica Status Solidi B 181, 37 (1994) at https://onlinelibrary.wiley.com/doi/epdf/10.1002/pssb.2221810104?purchase_referrer=www.google.com&tracking_action=preview_click&r3_referer=wol&show_checkout=1 Retrieved January 20, 2019 at 7:24 PM EST.</ref><ref name="Bonales" /> The formulas are: 1)van Duser: k=2.09(1–0.0017 T(°C)); 2)Choi & Okos: k=2.2199-6.248 ⋅ 10−3 T(°C) + 1.0154 ⋅ 10−4 T(°C)2; 3)Ratcliffe: k=2135 T(K)-1.235. k is given in w ⋅ m−1 ⋅ K−1. Errata: Contrary to what they say the formula of Bonales and Sanz cannot be fitted to their data and also it is not consistent with the results of Choi and Okos since their formula is a typo and also Choi and Okos did not cook up a linear function to start with. Instead the formula that would fit some of the Bonales data is k ≈ 2.0526 - 0.0176TC and not k = -0.0176 + 2.0526T as they say on page S615 and also the values they posted for Alexiades and Solomon do not fit the other formula that they posted on table 1 on page S611 and the formula that would fit over there is k = 2.18 - 0.01365TC and not k = 2.18 - 0.01365TK. The Clark Ice has a density of 0.9 g/cm−3. Robertson page 58.
Indium phosphide	80<ref name="CRC"/>	300<ref name="CRC"/>
Insulating firebrick	Sheffield Pottery, 2016: NC-23 0.19 0.20 0.23 0.26 NC-26 0.25 0.26 0.27 0.30 NC-28 0.29 0.32 0.33 0.36 List<ref name="Sheffield101">Sheffield Pottery,Link Text</ref> 1940s Blast Furnace: 1.58 1.55 1.53 List<ref name="TPRC2G" />	533 811 1089 1366 533 811 1089 1366 533 811 1089 1366 636.2 843.2 1036.2		Sheffield pottery: Standard ASTM 155 Grades, 05/10/2006: NC-23, Cold Crushing Strength=145 lbs/inch2, density=36 lbs/ft3 NC-26, Cold Crushing Strength=220 lbs/inch2, density=46 lbs/ft3 NC-28, Cold Crushing Strength=250 lbs/inch2, density=55 lbs/ft3 <ref name="Sheffield101" /> --- 1940s Blast Furnace: Kolechkova, A. F. and Goncharov, V. V., Ogneupory, 14, 445–53, 1949, TPRC pages 488, 493 & 1161.<ref name="TPRC2G" />
Iron, pure	71.8<ref name="EngineersEdge"/>-72.7<ref name="EngineeringToolbox-858"/>-79.5<ref name="HyperPhysics"/>-80<ref name="EngineeringToolbox-429"/>-80.2<ref name="CRC"/>-80.4<ref name="Wikipedia-Th"/><ref name="GoodFellow-Iron">www.goodfellow.com. "Iron - online catalogue source - supplier of research materials in small quantities - Goodfellow". www.goodfellow.com.</ref> 55.4<ref name="EngineeringToolbox-858"/> 34.6<ref name="EngineeringToolbox-858"/> TPRC 149 224 297 371 442 513 580 645 705 997 814 555 372 265 204 168 146 132 94 83.5 80.3 69.4 61.3 54.7 48.7 43.3 38.0 32.6 29.7 29.9 27.9 28.2 29.9 30.9 31.8 List<ref name="TPRC1G" /> The Soviet Union 86.5<ref name="GSE593" />	293<ref name="HyperPhysics"/><ref name="EngineeringToolbox-858"/>-298<ref name="EngineeringToolbox-429"/>-300<ref name="Wikipedia-Th"/><ref name="CRC"/><ref name="GoodFellow-Iron"/> 573<ref name="EngineeringToolbox-858"/> 1273<ref name="EngineeringToolbox-858"/> 2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100 200 273.2 300 400 500 600 700 800 900 1000 1100 1183 1183 1200 1300 1400 1500 273.15	9,901,000<ref name="GoodFellow-Iron"/> - 10,410,000<ref name="Wikipedia-El"/>	The TPRC recommended values are for well annealed 99.998% pure iron with residual electrical resistivity of ρ0=0.0327 μΩ⋅cm. TPRC Data Series volume 1 page 169.<ref name="TPRC1G" />
Iron, cast	55<ref name="EngineeringToolbox-429"/><ref name="EngineersEdge"/> Tadokoro Cast Iron* White 12.8 13.3 14.3 14.5 17.3 Grey 29.5 29.7 30.0 30.1 31.1 List: Tadokoro, curves 39 & 40 in TPRC Vol. I, pp 1130–31<ref name="TPRC1G" /> Donaldson Cast Iron* 48.5 48.1 46.9 47.3 46.9 46.0 List: Donaldson, curve 1 in TPRC Vol. I, pp 1129 & 1131<ref name="TPRC1G" />	298<ref name="EngineeringToolbox-429"/> 303.2 323.2 362.2 373.2 425.2 303.2 323.2 361.2 373.2 427.2 353.70 376.70 418.20 429.70 431.70 447.20		(Fe+(2–4)%C+(1–3)%Si) Apart from a thermal conductivity a boiler company also has an interface heat transfer coefficient Q and also some Kurganov has posted this simplification that water flowing in tubes has Q ≈ 500 - 1200 W/(m2K).<ref>Kurganov, V., A., in Thermopedia at http://www.thermopedia.com/content/841/ retrieved on January 30, 2019 at about 5:35 PM EST.</ref> These Tadokoro Irons are 3.02% C, 0.089% Cu, 0.53% Mn, 0.567% P, 0.074% S, 0.57% Si and 3.08% C, 0.136% Cu, 0.44% Mn, 0.540% P, .074% S and 0.58% Si, White Cast and Grey Cast respectively. By comparison the Donaldson Iron is 2.80% C, 0.10% Mn, 0.061% P, 0.093% S and 0.39% Si. It has 0.76% graphitic carbon and 2.04% combined carbon and the thermal conductivity measurements come with a 2% error estimate. Tadokoro, Y., J., Iron Steel Inst. (Japan), 22, 399 — 424, 1936 and Donaldson, J.W., J. Iron Steel Inst. (London), 128, p. 255-76, 1933.
Laminates, metal non-metal	Taylor I 30 varnished silicon steel foils each of thickness 0.014 inches (0.356 mm): density 7.36 g cm−3; measured near a temperature of 358.2 K under pressure in the range 0 — 132 psi: 0 psi 0.512 w m−1 K−1 20 psi 0.748 40 psi 0.846 60 psi 0.906 80 psi 0.925 100 psi 0.965 120 psi 0.992 132 psi 1.02 120 psi 1.00 100 psi NA* 80 psi 0.984 60 psi 0.945 40 psi 0.906 20 psi 0.846 0 psi 0.591 Taylor II 30 varnished silicon steel foils each of thickness 0.0172 inches (0.4368 mm); density 7.51 g cm−3; measured near a temperature of 358.2 K under pressure in the range 0 — 128 psi: 0 psi 0.433 w m−1 K−1 20 psi 0.807 40 psi 0.965 60 psi 1.04 80 psi 1.10 100 psi 1.18 120 psi 1.24 128 psi 1.26 120 psi 1.26 100 psi 1.22 80 psi 1.18 60 psi 1.14 40 psi 1.10 20 psi 0.984 0 psi 0.630 Taylor III 30 silicon steel foils each of thickness 0.0172 inches (0.4368 mm); density 7.79 g cm−3; measured near a temperature of 358.2 K under pressure in the range 0 — 125 psi: 0 psi 0.496 w m−1 K−1 10 psi 0.748 22.5 psi 0.945 125 psi 1.65 100 psi 1.59 80 psi 1.54 47 psi 1.38 20 psi 1.14 0 psi 0.709 List: Taylor, T.S., Elec. World, 76 (24), 1159 — 62, 1920.<ref name="TPRC2G" />			*The report in the Data Series says that the Taylor I laminate had a thermal conductivity of 0.0996 w cm−1 K−1 at 100 psi in descent and that is an obvious typo [NA]. What would fit is 0.00996 w cm−1 K−1 = 0.996 w m−1 K−1. TPRC Volume 2, pp 1037–9.
Lead, pure	34.7<ref name="HyperPhysics"/><ref name="EngineeringToolbox-858"/>-35.0<ref name="EngineeringToolbox-429"/><ref name="EngineersEdge"/>-35.3<ref name="Wikipedia-Th"/><ref name="GoodFellow-Lead">www.goodfellow.com. "Lead - online catalogue source - supplier of research materials in small quantities - Goodfellow". www.goodfellow.com.</ref> 29.8<ref name="EngineeringToolbox-858"/> TPRC 2770 4240 3400 2240 1380 820 490 320 230 178 146 123 107 94 84 77 66 59 50.7 47.7 45.1 43.5 39.6 36.6 35.5 35.2 33.8 32.5 31.2 List<ref name="TPRC1G" /> The Soviet Union 35.6<ref name="GSE593" />	293<ref name="HyperPhysics"/><ref name="EngineeringToolbox-858"/>-298<ref name="EngineeringToolbox-429"/>-300<ref name="Wikipedia-Th"/><ref name="GoodFellow-Lead"/> 573<ref name="EngineeringToolbox-858"/> 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 18 20 25 30 40 50 100 200 273.2 300 400 500 600 273.15	4,808,000<ref name="Wikipedia-El"/> - 4,854,000<ref name="GoodFellow-Lead"/>	The TPRC List is the TPRC estimate for well annealed Lead of 99.99+% purity and residual electrical resistivity ρ0=0.000880 μΩ cm. TPRC Data Series Volume 1, page 191.<ref name="TPRC1G" /> This material is superconductive (electrical) at temperatures below 7.193 Kelvins. Weast page E-87.<ref name="Weast" />
Limestone	1.26<ref name="Marble-Institute"/> - 1.33<ref name="Marble-Institute"/> Indiana Limestone R 1.19 1.21 1.19 1.11 1.12 1.07 1.03 0.62 0.57 0.54 List<ref name="TPRC1">Touloukian, Y.S., Powell, R.W., Ho, C.Y. and Klemens, P.G. Thermophysical and Electronic Properties Information and Analysis Center Lafayette In, TPRC Data Series Volume 2, (1971) pages 820-822>PDF at https://apps.dtic.mil/dtic/tr/fulltext/u2/a951936.pdf retrieved on February 2, 2019 at 5:23 AM EST.</ref> Queenstone Grey L 1.43 1.41 1.40 1.33 List1.43<ref name="TPRC2G" /> Generic Limestone R* Air in Pores Solidity = 1.0: K = 2.67* Solidity = 0.9: K = 2.17 Solidity = 0.8: K = 1.72 Solidity = 0.7: K = 1.32 Water in Pores Solidity = 1.0: K = 2.97 Solidity = 0.9: K = 2.52 Solidity = 0.8: K = 2.12 Solidity = 0.7: K = 1.77 List: Robertson formula 6 and page 10&16.<ref name="Robertson" />	---- 472 553 683 813 952 1013 1075 1181 1253 1324 395.9 450.4 527.6 605.4 300		Mostly CaCO3 and the "Indiana Limestone" is 98.4% CaCO3, 1% quartz and 0.6% hematite.<ref name="TPRC1" /> By comparison Queenstone Grey is a mixture of dolomite and calcite containing 22% MgCO2. Density=2.675 g cm−3. Niven, C.D., Can J. Research, A18, 132–7, 1940, TPRC pages 821 and 1170.<ref name="TPRC2G" /> Generic Limestone R is relatively pure polycrystaline calcite, solidity is the quotient of the solid grain volume divided by the bulk volume and K is thermal conductivity in W⋅m−1⋅K−1.
Manganese	7.81<ref name="EngineeringToolbox-429"/>			lowest thermal conductivity of any pure metal
Marble	2.07<ref name="Marble-Institute"/>-2.08<ref name="EngineeringToolbox-429"/>-2.94<ref name="EngineeringToolbox-429"/><ref name="Marble-Institute"/>	298<ref name="EngineeringToolbox-429"/>
Methane	0.030<ref name="EngineeringToolbox-429"/>-0.03281<ref name="AirLiquide-41">"Methane". 10 July 2018.</ref>	298<ref name="EngineeringToolbox-429"/>-273<ref name="AirLiquide-41"/>
Mineral wool insulation	0.04<ref name="EngineeringToolbox-429"/><ref name="Hukseflux"/><ref name="HyperPhysics"/>	293<ref name="Hukseflux"/>-298<ref name="EngineeringToolbox-429"/>
Nickel	90.9<ref name="Wikipedia-Th"/>-91<ref name="EngineeringToolbox-429"/>	298<ref name="EngineeringToolbox-429"/><ref name="Wikipedia-Th"/>
Nitrogen, pure	0.0234<ref name="HyperPhysics"/>-0.024<ref name="EngineeringToolbox-429"/>-0.02583<ref name="Wikipedia-Th"/>-0.026<ref name="EngineersEdge-Gases"/><ref name="CRC"/>	293<ref name="HyperPhysics"/>-298<ref name="EngineeringToolbox-429"/>-300<ref name="Wikipedia-Th"/><ref name="EngineersEdge-Gases"/><ref name="CRC"/>		(N2) (1 atm)
Norite	2.7 ± 0.4 List: Misener and others in Robertson page 31.<ref name="Robertson" />	300		This summary came from five samples in 1951.
Oxygen, pure (gas)	0.0238<ref name="HyperPhysics"/>-0.024<ref name="EngineeringToolbox-429"/>-0.0263<ref name="EngineersEdge-Gases"/>-0.02658<ref name="Wikipedia-Th"/>	293<ref name="HyperPhysics"/>-298<ref name="EngineeringToolbox-429"/>-300<ref name="Wikipedia-Th"/><ref name="EngineersEdge-Gases"/>		(O2) (1 atm)
Oil	Transformer Oil CRC Oil Regular 0.177 Light Heat 0.132 List<ref>Weast, R. C., Editor-in Chief, Handbook of Chemistry and Physics, 48th Edition, 1967-68, Cleveland: The Chemical Rubber Co., 1967, page E-5.</ref> Yarwood and Castle 0.135<ref name="YACG">Yarwood and CastlePhysical and Mathematical Tables 3rd edition, Glasgow UK: The University Press 1970</ref>	343.15 — 373.15 303.15 — 373.15 273.15		Yarwood and Castle have their transformer oil on page 37.
Paper	Ordinary Paper Engineeringtoolbox 0.05<ref name="EngineeringToolbox-429"/> Yarwood and Castle 0.125<ref name="YACG" /> Oil Impregnated Paper 0.180 — 0.186<ref name="TPRC2G" />	298<ref name="EngineeringToolbox-429"/> 291.15 294.7 — 385.2		The oil-impregnated paper was about 0.05 inches thick and it was loaded under about 2 PSI. TPRC Volume 2, page 1127. Yarwood and Castle has the thermal conductivity of their paper on page 36
Perlite, (1 atm)	0.031<ref name="EngineeringToolbox-429"/>	298<ref name="EngineeringToolbox-429"/>
Perlite in partial vacuum	0.00137<ref name="EngineeringToolbox-429"/>	298<ref name="EngineeringToolbox-429"/>
Pine	0.0886 0.0913 0.0939 0.0966 0.0994 0.102 List<ref name="TPRC2G" />	222.0 238.7 255.4 272.2 288.9 305.5		Density=0.386 g cm−3. Rowley, F. B., Jordan, R. C. and Lander, R. M., Refrigeration Engineering, 53, 35–9, 1947, TPRC pages 1083 and 1161.<ref name="TPRC2G" />
Plastic, fiber-reinforced	0.23<ref name="GoodFellow">"Goodfellow". Archived from the original on 21 December 2009. Retrieved 29 December 2009.</ref> - 0.7<ref name="GoodFellow"/> - 1.06<ref name="Hukseflux"/>	293<ref name="Hukseflux"/> - 296<ref name="GoodFellow"/>	10−15<ref name="GoodFellow"/> - 100<ref name="GoodFellow"/>	10-40%GF or CF
Polyethylene, high-density	0.42<ref name="EngineeringToolbox-429"/> - 0.51<ref name="EngineeringToolbox-429"/>	298<ref name="EngineeringToolbox-429"/>
Polymer, high-density	0.33<ref name="GoodFellow"/> - 0.52<ref name="GoodFellow"/>	296<ref name="GoodFellow"/>	10−16<ref name="GoodFellow"/> - 102<ref name="GoodFellow"/>
Polymer, low-density	0.04<ref name="GoodFellow"/> - 0.16<ref name="Hukseflux"/> - 0.25<ref name="Hukseflux"/> - 0.33<ref name="GoodFellow"/>	293<ref name="Hukseflux"/> - 296<ref name="GoodFellow"/>	10−17<ref name="GoodFellow"/> - 100<ref name="GoodFellow"/>
Polyurethane foam	0.03<ref name="EngineeringToolbox-429"/>	298<ref name="EngineeringToolbox-429"/>
Porcelain, electrical porcelain	1940s Values Sample 1 1.90 — 2.27 Sample 2 1.40 — 2.15 Sample 3 1.84 — 2.24	388.2 — 1418.2 395.2 — 1456.2 385.2 — 1396.2		Starting material was 19.0 flint, 37.0 feldspar, 7.0 Edgar plastic kaolin, 22.0 Edgar Nocarb clay, and 15.0 Kentucky old mine No. 4 ball clay, ball milled for 15 hours, slip cast and fired to 1250 °C; 25% open pores; bulk density 2.5 g ⋅ cm−3. Norton, F.H. and Kingery, W.D., USAEC Rept. NYO — 601, 1 — 52, 1943 in TPRC Vol. 2 page 937<ref name="TPRC2G" />
Propylene glycol	0.2007<ref name="Weast" />	293.15 — 353.15		This hearsay value is posted in the 48th Edition of the Handbook of Chemistry and Physics on page E-4.<ref name="Weast" />
Pyroxenite	4.3 ± 0.1 List: Birch and Clark in Robertson, page 31.<ref name="Robertson" />	300		This summary came from 2 samples in 1940.
Quartz, single crystal	12<ref name="CRC"/> <math>\parallel</math> to c axis, 06.8<ref name="CRC"/> <math>\perp</math> to c axis Rutgers University 11.1 <math>\parallel</math> to c axis, 5.88 <math>\perp</math> to c axis 9.34 <math>\parallel</math> to c axis, 5.19 <math>\perp</math> to c axis 8.68 <math>\parallel</math> to c axis, 4.50 <math>\perp</math> to c axis List<ref name="Weast5">[Engineering Research Bulletin No. 40, Rutgers University (1958) quoted by Weast, R.C., Editor-in-Chief, Handbook of Chemistry and Physics, 48th edition, Cleveland: The Chemical Rubber Publishing Co. 1967-1968, page E-5.]</ref> NBS 6.00 <math>\parallel</math> to c axis, 3.90 <math>\perp</math> to c axis 5.00 <math>\parallel</math> to c axis, 3.41 <math>\perp</math> to c axis 4.47 <math>\parallel</math> to c axis, 3.12 <math>\perp</math> to c axis 4.19 <math>\parallel</math> to c axis, 3.04 <math>\perp</math> to c axis List<ref name="P 99" />	300 311 366 422 500 600 700 800		The noted authorities have reported some values in three digits as cited here in metric translation but they have not demonstrated three digit measurement.<ref>R.W.Powell, C.Y.Ho and P.E.Liley, Thermal Conductivity of Selected Materials, NSRDS-NBS 8, Issued 25 November 1966, pages 69, 99>Link Text</ref> Errata: The numbered references in the NSRDS-NBS-8 pdf are found near the end of the TPRC Data Book Volume 2 and not somewhere in Volume 3 like it says.<ref name="TPRC2G" />
Quartz, fused, or vitreous silica, or fused silica	1.46<ref name="GoodFellow-Quartz-Fused">www.goodfellow.com. "Quartz - Fused - online catalogue source - supplier of research materials in small quantities - Goodfellow". www.goodfellow.com.</ref>-3<ref name="Hukseflux"/> 1.4<ref name="CRC"/> England 0.84 1.05 1.20 1.32 1.41 1.48 List<ref name="Ratcliffe">[Ratcliffe, E.H., National Physical Laboratory, Teddington, Middlesex, England, quoted by Weast, R.C. Editor-in-Chief, Handbook of Chemistry and Physics, 48th edition, 1967-1968, Cleveland: Chemical Rubber Publishing Co., page E6.]</ref> America 0.52 1.13 1.23 1.40 1.42 1.50 1.53 1.59 1.73 1.92 2.17 2.48 2.87 3.34 4.00 4.80 6.18 List<ref name="P 99">R.W.Powell, C.Y.Ho and P.E.Liley, Thermal Conductivity of Selected Materials, NSRDS-NBS 8, Issued 25 November 1966, page 99>Link Text</ref>	293<ref name="Hukseflux"/><ref name="GoodFellow-Quartz-Fused"/> 323<ref name="CRC"/> 123 173 223 273 323 373 100 200 223 293 323 373 400 500 600 700 800 900 1000 1100 1200 1300 1400	1.333E-18<ref name="serway"/> - 10−16<ref name="GoodFellow-Quartz-Fused"/>
Quartz, powdered	Kozak 1952 0.184 0.209 0.230 0.259 Sinel'nikov 1958 0.0289 0.0335 0.0356 0.041 0.0448 0.0515 0.0669 0.0753 0.0812 0.0837 List: TPRC II pages 177-180<ref name="TPRC2G" />	373.2 483.2 588.2 673.2 313.2 373.2 473.2 571.2 617.2 667.2 713.2 811.2 863.2 868.2		Kozak grain sizes ranged from 0.3 to 1 mm diameter and the density was 0.54 grams ⋅ cm−3. Kozak, M.I. Zhur. Tekh. Fiz., 22 (1), 73–6, 1952. By comparison Sinel'nikov powder is a powder in a vacuum, gran sizes range from 100 to 200 micrometers, the powder density is 1.35 g per cm−3. Sinel'nikov, N.N. and Filipovich, V.N., Soviet Phys. Tech., 3, 193–6, 1958. The TPRC record is blurred up some on the Sinel'nikov vacuum which looks like it is probably 5 ⋅ 10−5 mmHg. TPRC pages 177–180, Volume 2, curves 62 and 65, Reference numbers 326 and 327 respectively.<ref name="TPRC2G">Touloukian, Y.S., Powell, R.W., Ho, C.Y. and Klemens, P.G. Thermophysical and Electronic Properties Information and Analysis Center Lafayette In, TPRC Data Series Volume 2, (1971)>PDF at https://apps.dtic.mil/dtic/tr/fulltext/u2/a951936.pdf retrieved on February 2, 2019 at 5:23 AM EST.</ref>
Quartz, slip-cast	First Run 0.34 0.39 0.45 0.51 0.62 Second Run 0.63 0.66 0.69 List<ref name="Mason">Mason, C.R., Walton, J.D., Bowen, M.D. and Teague, W.T. (1959) in R.W.Powell, C.Y.Ho and P.E.Liley, Thermal Conductivity of Selected Materials, NSRDS-NBS 8, Issued 25 November 1966, pages 99, 103>Link Text</ref>	500 700 900 1100 1300 900 1000 1100		This material which must have started out like unfired pottery was slip cast from fused silica. Then it was dried four days at 333 K before being tested. It was 9 inches in diameter and 1 inch thick, density 1.78 ⋅ cm−3. The first run went to 1317K and then on the second run the same insulator proved to be more conductive. 1959.<ref name="Mason" />
Redwood bark	Whole: Density=0.0641 g cm−3 L 0.0286 0.0307 0.0330 0.0356 0.0379 0.0407 Shredded: Density=0.0625 g cm−3 L 0.0107 List<ref name="TPRC2G" />	222.2 239.2 255.5 272.1 288.8 305.3 318.7		Whole: Rowley, F. B., Jordan, R. C. and Lander, R. M., Refrig. Eng., 50, 541–4, 1945, TPRC pages 1084 & 1172.<ref name="TPRC2G" /> Shredded: Wilkes, G. B., Refrig. Eng., 52, 37–42, 1946, TPRC pages 1084 & 1162.<ref name="TPRC2G" />
Rice hulls (ash)	0.062<ref name="Rice-Hull-House2">"Data" (PDF). esrla.com.</ref>
Rice hulls (whole)	0.0359<ref name="Rice-Hull-House2"/>
Rock, felsic igneous	Air in Pores, 5 MPa* Solidity* = 1 20%v Quartz: 2.21 40%v Quartz: 2.97 60%v Quartz: 3.72 Solidity = 0.9 20%v Quartz: 1.80 40%v Quartz: 2.41 60%v Quartz: 3.02 Water in Pores, 5 MPa Solidity = 1 20%v Quartz: 2.83 40%v Quartz: 4.14 60%v Quartz: 5.46 Solidity = 0.9 20%v Quartz: 2.41 40%v Quartz: 3.47 60%v Quartz: 4.54 List: Formula values (6), page 10, Robertson.<ref name="Robertson" />	300		*5 MPa is 5 ⋅ 106 Pascals or 5 ⋅ 106 Newtons per meter2 or about fifty atmospheres pressure. *Solidity ≡ the ratio of the volume of solid to the bulk volume, or the ratio of bulk density to solid grain density dB/dG. Symbols: %v is percent by volume.
Rock, mafic igneous	Air in Pores, 5 MPa Solidity = 1 0 %v OPA*: 1.50 5 %v OPA : 1.58 10%v OPA: 1.65 20%v OPA: 1.80 30%v OPA: 1.95 Solidity = 0.9 0 %v OPA : 1.25 5 %v OPA : 1.31 10%v OPA: 1.37 20%v OPA: 1.49 30%v OPA: 1.62 Water in Pores, 5 MPa Solidity = 1 0 %v OPA : 1.84 5 %v OPA : 1.96 10%v OPA: 2.09 20%v OPA: 2.34 30%v OPA: 2.59 Solidity = 0.9 0 %v OPA : 1.63 5 %v OPA : 1.73 10%v OPA: 1.83 20%v OPA: 2.04 30%v OPA: 2.24 List: Formula values (6), page 10, Robertson.<ref name="Robertson" />	300		*OPA is olivine, pyroxene and/or amphibole in any proportions.
Rubber	CRC Rubber, 92%, nd 0.16<ref name="CRC"/> Griffiths Natural Rubber 1923 0.134 Hayes Synthetic Rubbers 1960 Thiokel ST 0.268 Kel-F 3700 0.117 0.113 0.113 0.113 Carboxy Rubber, Firestone butaprene T 0.255 0.238 0.197 List Griffiths and Hayes curves 11, 41, 43 & 56 in TPRC II pp 981–984<ref name="TPRC2G" />	303<ref name="CRC"/> 298.2 310.9 310.9 422.1 477.6 533.2 310.9 422.1 477.6	1×10^−13~<ref name="serway"/>	The Listed Synthetic Rubbers and more of them in the data collection are credited to Hayes, R.A., Smith, F.M., Kidder, G.A., Henning, J.C., Rigby, J.D. and Hall, G.L., WADC TR 56-331 (Pt.4), 1–157, 1960 [AD 240 212].<ref name="TPRC2G" />
Sand, Hudson River	0.27 List: Robertson page 58<ref name="Robertson" />	303.15		This sample has a density of 1.36 g/cm3.
Sandstone	1.83<ref name="Marble-Institute"/> - 2.90<ref name="Marble-Institute"/> 2.1<ref name="FuchsFörster2010">"Information" (PDF). edoc.gfz-potsdam.de.</ref> - 3.9<ref name="FuchsFörster2010"/>			~95-71%SiO2 ~98-48%SiO2, ~16-30% Porosity
Silica aerogel	0.003<ref name="CRC"/> (carbon black9%~0.0042<ref name="Silica-Aerogels">"Thermal Properties : Silica Aerogels". Archived from the original on 21 March 2014. Retrieved 27 February 2014. Thermal Properties - Silica Aerogels</ref>)-0.008<ref name="Silica-Aerogels"/>-0.017<ref name="Silica-Aerogels"/>-0.02<ref name="EngineeringToolbox-429"/>-0.03<ref name="CRC"/>	98<ref name="CRC"/> - 298<ref name="EngineeringToolbox-429"/><ref name="CRC"/>		Foamed glass
Silver, pure	406<ref name="HyperPhysics"/>-407<ref name="EngineeringToolbox-858"/>-418<ref name="EngineersEdge"/> 427<ref name="ElectroIQ"/>-429<ref name="EngineeringToolbox-429"/><ref name="Wikipedia-Th"/><ref name="CRC"/><ref name="GoodFellow-Silver">www.goodfellow.com. "Silver - online catalogue source - supplier of research materials in small quantities - Goodfellow". www.goodfellow.com.</ref>-430<ref name="Wikipedia-Th"/> 1970s values: TPRC 3940 7830 17200 16800 5100 1930 1050 700 550 497 471 460 450 432 430 428 427 420 413 405 397 389 382 List<ref name="TPRC1G" /> The Soviet Union 429<ref name="GSE593" />	293<ref name="HyperPhysics"/><ref name="EngineeringToolbox-858"/> 298<ref name="EngineeringToolbox-429"/><ref name="Wikipedia-Th"/><ref name="GoodFellow-Silver"/>-300<ref name="Wikipedia-Th"/><ref name="CRC"/> 1 2 5 10 20 30 40 50 60 70 80 90 100 150 200 273.2 300 400 500 600 700 800 900 273.15	61,350,000<ref name="GoodFellow-Silver"/> - 63,010,000<ref name="Wikipedia-El"/>	Highest electrical conductivity of any metal TPRC recommended values are for well annealed 99.999% pure silver with residual electrical resistivity of ρ0=0.000620 μΩ⋅cm. TPRC Data Series volume 1 page 348 (1970).<ref name="TPRC1G" />
Silver, sterling	361<ref name="Vandana2002">S. Vandana (1 December 2002). Alternative Energy. APH. p. 45. ISBN 978-81-7648-349-0.</ref>
Snow, dry	0.05<ref name="EngineeringToolbox-429"/>-0.11<ref name="HyperPhysics"/>-0.25<ref name="EngineeringToolbox-429"/>	273<ref name="EngineeringToolbox-429"/>
Sodium chloride	35.1 - 6.5 - 4.85<ref name="almazoptics.com">"Sodium Chloride, Sodium Chloride properties, NaCl -- Almaz Optics, Inc". www.almazoptics.com.</ref>	80 - 289 - 400<ref name="almazoptics.com"/>
Soil, dry with organic matter	0.15<ref name="Hukseflux"/><ref name="Soil-SciJournals">Soil Sci Journals Archived 28 January 2007 at the Wayback Machine</ref>-1.15<ref name="Soil-SciJournals"/>-2<ref name="Hukseflux"/>	293<ref name="Hukseflux"/>		composition may vary
Soil, saturated	0.6<ref name="Hukseflux"/>-4<ref name="Hukseflux"/>	293<ref name="Hukseflux"/>		composition may vary
Soils, temperate	Andersland Soils Sandy Soils Dry Density= 1200 kg ⋅ meter−3 20% Saturation: K= 0.90 W ⋅ m−1 ⋅ K−1 40% Saturation: K= 1.05 60% Saturation: K= 1.15 80% Saturation: K= 1.20 Dry Density= 1400 kg ⋅ meter−3 20% Saturation: K= 1.09 40% Saturation: K= 1.30 60% Saturation: K= 1.44 80% Saturation: K= 1.54 Dry Density= 1600 kg ⋅ meter−3 20% Saturation: K= 1.29 40% Saturation: K= 1.58 60% Saturation: K= 1.76 80% Saturation: K= 1.88 Dry Density= 1800 kg ⋅ meter−3 20% Saturation: K= 1.50 40% Saturation: K= 1.90 60% Saturation: K= 2.15 80% Saturation: K= 2.31 Silt and Clay Soils Dry Density= 1200 kg ⋅ meter−3 20% Saturation: K= 0.54 W ⋅ m−1 ⋅ K−1 40% Saturation: K= 0.76 60% Saturation: K= 0.90 80% Saturation: K= 1.00 Dry Density= 1400 kg ⋅ meter−3 20% Saturation: K= 0.59 40% Saturation: K= 0.86 60% Saturation: K= 1.04 80% Saturation: K= 1.15 Dry Density= 1600 kg ⋅ meter−3 20% Saturation: K= 0.61 40% Saturation: K= 1.00 60% Saturation: K= 1.23 80% Saturation: K= 1.39 Dry Density= 1800 kg ⋅ meter−3 20% Saturation: K= 0.65 40% Saturation: K= 1.08 60% Saturation: K= 1.39 80% Saturation: K= 1.62 Charts: Andersland and Anderson in Farouki, figures 152 page 106 and 148 on page 104<ref name="Farouki">Farouki, Omar T., Thermal Properties of Soils, CRREL Monograph 81-1, U.S. Army Cold Regions Research and Engineering Laboratory, Hanover New Hampshire, December 1981 at https://babel.hathitrust.org/cgi/pt?id=uc1.31210018605970;view=1up;seq=3 retrieved January 28, 2019 at 2:19 AM EST.</ref> de Vries Soils Mineral; density 2.65 g cm−3: K = 2.93 Organic; density 1.3 g cm−3: K = 0.251 Soil, mineral, dry; density 1.50 g cm−3: K = 0.209 Soil, mineral, saturated; density 1.93 g cm−3: K = 2.09 Soil, organic, dry; density 0.13 g cm−3: K = 0.033 Soil, organic, sat.; density 1.03 g cm−3: K = 0.502 List<ref name="dV">de Vries, D. A. and Peck, A. J., "On the Cylindrical Probe Method of Measuring Thermal Conductivity With Special Reference to Soils. I. Extension of Theory and Discussion of Probe Characteristics," Australian Journal of Physics, 11 (2), [pp 255-71] page 262, 1958> http://www.publish.csiro.au/?act=view_file&file_id=PH580255.pdf. Retrieved 29 March 2016 at 9:17 PM (UTC).</ref> Higashi Soil With Water r* Loose Packed r = 0.0: K= 0.255 W ⋅ m−1 ⋅ K−1 r = 0.2: K= 0.534 r = 0.4: K= 0.883 r = 0.6: K= 1.162 Close Packed r = 0.0: K= 0.372 r = 0.2: K= 0.697 r = 0.4: K= 1.127 r = 0.6: K= 1.627 List: Higashi, Akira; Hokkaido University Library<ref>Higashi, Akira, On the Thermal Conductivity of Soil, Journal of the Faculty of Science, Hokkaido University, Series 2, Physics, 4_P21-28, 1951-02 at https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/34185/1/4_P21-28.pdf retrieved January 26, 2019 at 12:08 AM, EST.</ref> Kersten Soils Silt-Clay Soils 1.28 grams ⋅ cm−3 dry 50% Saturation: K = 0.89 W ⋅ m−1 ⋅ K−1 100% Saturation: K = 1.1 1.44 grams ⋅ cm−3 dry 50% Saturation: K = 1.0 100% Saturation: K = 1.3 1.60 grams ⋅ cm−3dry 50% Saturation: K = 1.2 100% Saturation: K = 1.5 Sandy Soil 1.60 grams ⋅ cm−3 dry 50% Saturation: K = 1.7 W ⋅ m−1 ⋅ K−1 100% Saturation: K = 2.0 List: Kersten in Farouki, figures 146 & 150, pp. 103 & 105<ref name="Farouki">Farouki, Omar T., Thermal Properties of Soils, CRREL Monograph 81-1, U.S. Army Cold Regions Research and Engineering Laboratory, Hanover New Hampshire, December 1981 at https://babel.hathitrust.org/cgi/pt?id=uc1.31210018605970;view=1up;seq=3 retrieved January 28, 2019 at 2:19 AM EST.</ref>	293.2 277.59		The cited Andersland Charts include corresponding water content percentages for easy measurements. The TPRC Data Book has been quoting de Vries with values of 0.0251 and 0.0109 W⋅cm−3⋅Kelvin−1 for the thermal conductivities of organic and dry mineral soils respectively but the original article is free at the website of their cited journal. Errors: TPRC Volume 2 pages 847 and 1159.<ref name="TPRC2G" /> Journal archives.<ref name="dV" /> Also some de Vries authorities include John Webb, "Thermal Conductivity of Soil" November 1956, Nature Volume 178, pages 1074–1075, and M.W. Makowski, "Thermal Conductivity of Soil" April 1957, Nature Volume 179, pages 778-779 and more recent notables include Nan Zhang Phd and Zhaoyu Wang PhD "Review of soil thermal conductivity and predictive models" July 2017, International Journal of Thermal Sciences Volume 117 pages 172–183. r ≡ The ratio of the water mass to the dried soil mass. Higashi Soil.
Soils, frozen, below saturation	Higashi Soils Soil A, Black cultivated, 0 — 10 cm deep Dry: K = 0.488 W ⋅ m−1 ⋅ K−1 Saturated: K = 3.151 Soil B, Brown subsoil, 25 — 30 cm deep Dry: K = 0.232 Saturated: K = 2.604 Soil C, Yellow brown subsoil, 50 — 60 cm deep Dry: K = 0.290 Saturated: K = 2.279 List: Higashi, Hokkaido University Library<ref name="Higashi">Higashi, Akira, Thermal Conductivity of Frozen Soil, Journal of the Faculty of Science, Hokkaido University, Series 2, Physics 4_P95-106, 1952-3 at https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/34198/1/4_P95-106.pdf retrieved January 26, 2019 at 12:12 AM EST.</ref> Kersten Soils Sandy Soil 1.60 grams ⋅ cm−3 dry 50% Saturation: K = 1.7 W ⋅ m−1 ⋅ K−1 100% Saturation: K > 3.17 List: Kersten in Farouki, figure 151 page 105.<ref name="Farouki" />	268.15 ± 2K 269.26		Higashi anomalies: The very high c values that are labeled as thermal conductivities in table III on page 100 would roughly fit the thesis of the paper if they came with lower orders of magnitude. The way that the dry soils get a lot lighter between Table I on page 99 and table IV on pages 102-3 is eventually explained by the fact that Table I has pycnometer densities. For those who may already see reasons to learn more about the thermal conductivities of the soils it is free from the Army Cold Regions Research and Engineering Laboratory. The whole thing is on the Farouki reference footnote<ref name="Farouki" /> and it comes with graphs and with formulas. To make it easier a lb/ft3 is about 0.01601846 grams/cm3 and a Btu in./ft2 hr °F is about 0.14413139 W ⋅ m−1 ⋅ K−1.
Soils, frozen, above saturation	Higashi Soils Soil A r* = 0.7: K = 3.953 W ⋅ m−1 ⋅ K−1 Soil B r = 0.8: K = 3.348 List<ref name="Higashi" />	268.15 ± 2K		In this sample of two there is one very dirty kind of ice that conducts heat at nearly twice the rate of plain ice. *r ≡ The ratio of the water mass to the dried mass.
Solder, Sn/63% Pb/37%	50<ref name=ec>"Thermal Conductivity-of Solders". 9 August 2006.</ref>
Lead-free solder, Sn/95.6% Ag/3.5% Cu/0.9%, Sn/95.5% Ag/3.8% Cu/0.7% (SAC)	~60<ref name=ec/>
Steel, carbon	36<ref name="EngineeringToolbox-858"/><ref name="EngineersEdge"/>-43<ref name="EngineeringToolbox-429"/> 50.2<ref name="HyperPhysics"/>-54<ref name="EngineeringToolbox-429"/><ref name="EngineeringToolbox-858"/><ref name="EngineersEdge"/> Intermediate British Steels, 1933 CS 81: 0.1% C, 0.34% Mn 67.4 66.1 64.9 CS 91: 0.26% C, 0.61% Mn 56.1 55.2 54.4 CS 92: 0.44% C, 0.67% Mn 54.0 52.7 51.9 List: Naeser, G. in TPRC I pp 1186–90, curves 81, 91 and 92<ref name="TPRC1G" /> Tool Steel, 1.41% C, 0.23% Mn, 0.158% Si L Water Quenched 30.5 31.0 31.8 Tempered at 150°C and air cooled 32.2 32.2 32.8 Tempered at 200°C and air cooled 33.1 33.9 33.5 Tempered at 250°C and air cooled 36.8 36.4 37.2 Tempered at 300°C and air cooled 37.7 38.5 38.1 Tempered at 350°C and air cooled 38.1 38.5 38.9 List: Hattori, D., J. Iron Steel Inst. (London) 129 (1), 189–306, 1934 in TPRC I pp 1115–1120 curves 61-66<ref name="TPRC1G" />	293<ref name="HyperPhysics"/><ref name="EngineeringToolbox-858"/>-298<ref name="EngineeringToolbox-429"/> 373.2 473.2 573.2 373.2 473.2 573.2 373.2 473.2 573.2 355.70 374.20 390.20 360.70 376.70 389.70 366.20 401.70 427.20 364.20 395.70 424.70 365.70 393.20 427.20 369.20 390.70 432.20		(Fe+(1.5-0.5)%C)
Steel, stainless	16.3<ref name="EngineersEdge"/><ref name="GoodFellow-StainlessSteel-3xx">http://www.goodfellow.com/E/Stainless-Steel-AISI-302.html http://www.goodfellow.com/E/Stainless-Steel-AISI-304.html http://www.goodfellow.com/E/Stainless-Steel-AISI-310.html http://www.goodfellow.com/E/Stainless-Steel-AISI-316.html http://www.goodfellow.com/E/Stainless-Steel-AISI-321.html</ref>-16.7<ref name="GoodFellow-StainlessSteel-17-7PH">www.goodfellow.com. "Stainless Steel - 17-7PH - online catalogue source - supplier of research materials in small quantities - Goodfellow". www.goodfellow.com.</ref>-18<ref name="GoodFellow-StainlessSteel-410">www.goodfellow.com. "Stainless Steel - AISI 410 - online catalogue source - supplier of research materials in small quantities - Goodfellow". www.goodfellow.com.</ref>-24<ref name="GoodFellow-StainlessSteel-410"/>	296<ref name="GoodFellow-StainlessSteel-3xx"/><ref name="GoodFellow-StainlessSteel-17-7PH"/><ref name="GoodFellow-StainlessSteel-410"/>	1,176,000<ref name="GoodFellow-StainlessSteel-17-7PH"/> - 1,786,000<ref name="GoodFellow-StainlessSteel-410"/>	(Fe, Cr12.5-25%, Ni0-20%, Mo0-3%, Ti0-trace)
Styrofoam-expanded polystyrene	Dow Chemical 0.033-0.036<ref name="Dow">"STYROFOAM : Declared Thermal Resistance". Dow.</ref> K. T. Yucel et al. 0.036-0.046<ref name="Yucel">"Thermal Insulation Properties of Expanded Polystyrene as Construction and Insulating Materials" (PDF). Demirel University. Archived from the original (PDF) on 31 January 2015. Retrieved 17 March 2016.</ref>
Syenite	2.18 List: Birch and Clark in Robertson page 58<ref name="Robertson" />	300		This summary came from one sample in 1940.
Thermal grease	0.4 - 3.0
Thermal tape	0.60<ref>"3M™ Thermally Conductive Adhesive Transfer Tape 8805". 3M. 2015.</ref>
Thorium dioxide	3.68 3.12 2.84 2.66 2.54 List<ref name="TPRC2G" />	1000 1200 1400 1600 1800		Recommended values, TPRC, Polycrystaline, 99.5% pure, 98% dense, page 198<ref name="TPRC2G" />
Tin	TPRC 20400<math>\perp</math>to the c axis, 14200 <math>\parallel</math> to the c axis, 18300 P* 36000<math>\perp</math>to the c axis, 25000 <math>\parallel</math> to the c axis, 32300 P 33100<math>\perp</math>to the c axis, 23000 <math>\parallel</math> to the c axis, 29700 P 20200<math>\perp</math>to the c axis, 14000 <math>\parallel</math> to the c axis, 18100 P 13000<math>\perp</math>to the c axis, 9000 <math>\parallel</math> to the c axis, (11700) P 8500<math>\perp</math>to the c axis, 5900 <math>\parallel</math> to the c axis, (7600) P 5800<math>\perp</math>to the c axis, 4000 <math>\parallel</math> to the c axis, (5200) P 4000<math>\perp</math>to the c axis, 2800 <math>\parallel</math> to the c axis, (3600) P 2900<math>\perp</math>to the c axis, 2010 <math>\parallel</math> to the c axis, (2600) P 2150 <math>\perp</math>to the c axis, 1490 <math>\parallel</math> to the c axis, (1930) P 1650<math>\perp</math>to the c axis, 1140<math>\parallel</math> to the c axis, (1480) P 1290<math>\perp</math>to the c axis, 900 <math>\parallel</math> to the c axis, (1160) P 1040<math>\perp</math>to the c axis, 20 <math>\parallel</math> to the c axis, (930) P 850 <math>\perp</math>to the c axis, 590 <math>\parallel</math> to the c axis, (760) P 700 <math>\perp</math>to the c axis, 490 <math>\parallel</math> to the c axis, (630) P 590 <math>\perp</math>to the c axis, 410 <math>\parallel</math> to the c axis, (530) P 450 <math>\perp</math>to the c axis, 310 <math>\parallel</math> to the c axis, (400) P 360 <math>\perp</math>to the c axis, 250 <math>\parallel</math> to the c axis, (320) P 250 <math>\perp</math>to the c axis, 172 <math>\parallel</math> to the c axis, (222) P 200 <math>\perp</math>to the c axis, 136* <math>\parallel</math> to the c axis, (176) P 167 <math>\perp</math>to the c axis, 116 <math>\parallel</math> to the c axis, (150) P (150)<math>\perp</math>to the c axis, (104) <math>\parallel</math> to the c axis, (133) P (137)<math>\perp</math>to the c axis, (95) <math>\parallel</math> to the c axis, (123) P (128)<math>\perp</math>to the c axis, (89) <math>\parallel</math> to the c axis, (115) P (107)<math>\perp</math>to the c axis, (74) <math>\parallel</math> to the c axis, (96) P (98.0)<math>\perp</math>to the c axis, (68.0) <math>\parallel</math> to the c axis, (88.0) P (95.0)<math>\perp</math>to the c axis, (66.0) <math>\parallel</math> to the c axis, (85.0) P (86.7)<math>\perp</math>to the c axis, (60.2) <math>\parallel</math> to the c axis, (77.9) P (81.6)<math>\perp</math>to the c axis, (56.7) <math>\parallel</math> to the c axis, (73.3) P (75.9)<math>\perp</math>to the c axis, (52.7) <math>\parallel</math> to the c axis, 68.2 P (74.2)<math>\perp</math>to the c axis, (51.5) <math>\parallel</math> to the c axis, 66.6 P 69.3<math>\perp</math>to the c axis, 48.1 <math>\parallel</math> to the c axis, 62.2 P 66.4<math>\perp</math>to the c axis, 46.1 <math>\parallel</math> to the c axis, 59.6 P List<ref name="TPRC1G" /> The Soviet Union 68.2<ref name="GSE593" />	1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 18 20 25 30 35 40 45 50 70 90 100 150 200 273.2 300 400 500 273.15		*The P Conductivity is the conductivity of polycrystalline Tin. TPRC Tin is well annealed 99.999+% pure white tin with residual electrical resistivity ρ0=0.000120, 0.0001272 & 0.000133 μΩ cm respectively for the single crystal along directions perpendicular <math>\perp</math> and parallel <math>\parallel</math> to the c axis and for polycrystalline tin P. The recommended values are thought to be accurate to within 3% near room temperature and 3 to [unintelligible] at other temperatures. Values in parentheses are extrapolated, interpolated, or estimated. *It happens that the online record has the thermal conductivity at 30 Kelvins and <math>\parallel</math> to the c axis posted at 1.36 W⋅cm−1 K−1 and 78.0 Btu hr−1 ft−1 F−1 which is incorrect. Also the copy is blurred up enough to give you the impression that maybe what it really means is 1.36 W−1 cm−1 K−1 and 78.6 Btu hr−1 ft−1 F−1 and a type-head that got overdue for its cleaning since the secretary had a tall heap of papers on her desk and if that is the case then the multilingual expression is perfectly consistent. TPRC Data Series Volume 1, page 408.<ref name="TPRC1G" /> This material is superconductive (electrical) at temperatures below 3.722 Kelvins. Weast page E-75.<ref name="Weast" />
Titanium, pure	15.6<ref name="EngineersEdge"/>-19.0<ref name="EngineeringToolbox-858"/>-21.9<ref name="Wikipedia-Th"/><ref name="GoodFellow-Titanium">www.goodfellow.com. "Titanium - online catalogue source - supplier of research materials in small quantities - Goodfellow". www.goodfellow.com.</ref>-22.5<ref name="EngineeringToolbox-858"/>	293<ref name="EngineeringToolbox-858"/>-300<ref name="Wikipedia-Th"/><ref name="GoodFellow-Titanium"/>	1,852,000<ref name="GoodFellow-Titanium"/> - 2,381,000<ref name="Wikipedia-El"/>
Titanium alloy	5.8<ref name="GoodFellow-Titanium-Aluminium-Vanadium">www.goodfellow.com. "Titanium/Aluminium/Vanadium - online catalogue source - supplier of research materials in small quantities - Goodfellow". www.goodfellow.com.</ref>	296<ref name="GoodFellow-Titanium-Aluminium-Vanadium"/>	595,200<ref name="GoodFellow-Titanium-Aluminium-Vanadium"/>	(Ti+6%Al+4%V)
Tungsten, pure	173 1440 9710 208 173<ref name="Tungsten">Tungsten</ref> 118 98<ref>Inc., eFunda. "Thermal Conductivity: Tungsten". www.efunda.com. {{cite web}}: |last= has generic name (help)</ref>	1 10 100 293<ref name="Tungsten"/> 1000 2000	18,940,000<ref name="Tungsten"/>
Wallboard (1929)	0.0640 0.0581 0.0633 List<ref name="TPRC2G" />	322.8		Stiles, H., Chem. Met. Eng.,36, 625–6, 1929, TPRC Volume 2 pages 1131 and 1172. This is commercial wallboard in three samples of it at the same mean temperature.<ref name="TPRC2G" />
Water	0.563<ref name="SeaWater">"2.7.9 Physical properties of sea water". www.kayelaby.npl.co.uk/ - www.npl.co.uk/. Archived from the original on 4 August 2017. Retrieved 25 January 2010.</ref>-0.596<ref name="SeaWater"/>-0.6<ref name="Hukseflux"/><ref name="HyperPhysics"/>-0.609<ref name="EngineeringToolbox-1260"/> Deionized ultra-filtered water 0.598<ref>Dr. Cederkrantz, Daniel (11 February 2021). "Thermal Conductivity of Water". www.thermtest.se.</ref> TPRC 0.5225* 0.5551* 0.5818 0.5918 0.6084 0.6233 0.6367 0.6485 0.6587 0.6673 0.6797 0.6864 0.6727 0.6348 0.5708 List<ref name="TPRC3G">Touloukian, Powell, Ho and Klemens, Purdue Research Foundation, TPRC Data Series Volume 3 (1970)https://apps.dtic.mil/dtic/tr/fulltext/u2/a951937.pdf retrieved on February 2, 2019 at 5:34 AM EST.</ref> The Soviet Union 0.599<ref name="GSE593" />	273<ref name="SeaWater"/>-293<ref name="Hukseflux"/><ref name="HyperPhysics"/><ref name="SeaWater"/>-300<ref name="EngineeringToolbox-1260"/> 293.15 250 270 280 290 300 310 320 330 340 350 370 400 450 500 550 293.15	5×Pure10−6<ref name="Wikipedia"/>-Sweet10−3±1<ref name="Wikipedia"/>-Sea1<ref name="SeaWater"/>	<4<ref name="SeaWater"/>%(NaCl+MgCl2+CaCl2) *The TPRC Estimates for water at 250K and 270K are for supercooled liquid. Of course the values for 400K and above are for water under steam pressure.<ref name="TPRC3G" />
Water vapor	0.016<ref name="EngineeringToolbox-429"/>-0.02479 (101.3 kPa)<ref name=crc84.6-4>"Thermal conductivity of saturated H2O and D2O", CRC Handbook, p. 6–4.</ref> 0.0471 (1 bar)<ref name=crc84.6-195>"Thermal conductivity of gases", CRC Handbook, p. 6–195.</ref>	293<ref name=crc84.6-4/>-398<ref name="EngineeringToolbox-429"/> 600<ref name=crc84.6-195/>
Wood, moist	+>=12% water: 0.09091<ref name="Wood">"Physical Properties and Moisture Relations of Wood" (PDF).</ref>-0.16<ref name="CRC"/>-0.21<ref name="Wood"/>-0.4<ref name="Hukseflux"/> The Royal Society: Fir L Specific gravity=0.6 15% moisture ⊥ to the grain U*: 0.117 Mahogany L Specific gravity=0.70 15% m & ⊥ to the grain R*: 0.167 15% m & ⊥ to the grain T*: 0.155 15% m & <math>\parallel</math> to the grain: 0.310 Oak L Specific gravity=0.60 14% m & ⊥ to the grain T: 0.117 Spruce: L Electric Oven 3.40% m & ⊥ to the grain R: 0.122 5.80% m & ⊥ to the grain R: 0.126 7.70% m & ⊥ to the grain R: 0.129 9.95% m & ⊥ to the grain R: 0.133 17.0% m & ⊥ to the grain R: 0.142 Specific gravity=0.041 16% m & ⊥ to the grain R: 0.121 16% m & ⊥ to the grain T: 0.105 16% m & <math>\parallel</math> to the grain: 0.222 Teak L Specific gravity=0.72 10% m & ⊥ to the grain T: 0.138 Walnut L Specific gravity=0.65 12.1% m & ⊥ to the grain R: 0.145 11.3% m & ⊥ to the grain T: 0.136 11.8% m & <math>\parallel</math> to the grain: 0.332 List<ref name="TPRC2G" />	298<ref name="CRC"/>-293<ref name="Hukseflux"/> 293.2 293.2 293.2 293.2 293.2 373.2 373.2 373.2 373.2 373.2 293.2 293.2 293.2 293.2 293.2 293.2 293.2		Species-Variable<ref name="Wood"/> The Royal Society: Griffiths, E. and Kaye, G. W. C., Proc. Roy. Soc. (London), A104, 71–98, 1923, TPRC Volume 2, pages 1073, 1080, 1082, 1086 and 1162.<ref name="TPRC2G" /> *The R conductivity is the thermal conductivity radial to the annual rings, T is tangential to those rings and U is unspecified. Mahogany: page 1080, Oak: page 1082, Spruce: page 1086, Teak: page 1087, Walnut: page 1089. Method: Longitudinal Heat Flow, TPRC 1, page 24a.<ref name="TPRC1G" /> Note: all the percentages refer to moisture. The Fir was measured at 15%, Mahogany, 15%, Oak, 14%, Spruce, 3.40%, 5.80%, 7.70%, 9.95%, 17.0% and 16%. Teak was measured at 10% and Walnut was measured at 12.1%, 11.3% and 11.8% moisture.
Wood, unspecified	0.04<ref name="HyperPhysics"/>-0.055<ref name="EngineeringToolbox-429"/>-0.07692<ref name="Wood"/>-0.12<ref name="HyperPhysics"/>-0.17<ref name="EngineeringToolbox-429"/><ref name="Wood"/> The Royal Society Walnut L ⊥ to the grain & tangent to the annual rings, various pressures and thicknesses all 0.137 ± 0.001 twelve times over. Griffiths, E. and Kaye, G. W. C., Proc. Roy. Soc. (London), A104, 71–98, 1923 in TPRC 2 page 1089.<ref name="TPRC2G" /> Various Pine, see Pine. Redwood Bark, see Redwood Bark.	293<ref name="HyperPhysics"/>-298<ref name="EngineeringToolbox-429"/> 293.2		Balsa<ref name="EngineeringToolbox-429"/>-Cedar<ref name="Wood"/>-Hickory<ref name="Wood"/>/Oak<ref name="EngineeringToolbox-429"/>
Wool, Angora wool	0.0464<ref name="TPRC2G" />	293.2<ref name="TPRC2G" />		Bettini, T. M., Ric. Sci. 20 (4), 464–6, 1950, TPRC pages 1092 and 1172<ref name="TPRC2G" />
Wool felt	0.0623<ref name="TPRC2G" /> 0.0732<ref name="TPRC2G" />	313.2<ref name="TPRC2G" /> 343.2<ref name="TPRC2G" />		Taylor, T. S., Mech. Eng., 42, 8–10, 1920, TPRC pages 1133 and 1161.<ref name="TPRC2G" />
Zinc, pure	116<ref name="Wikipedia"/>	293<ref name="Wikipedia"/>	16,950,000<ref name="Wikipedia"/>
Zinc oxide	21<ref name="ElectroIQ"/>
Zirconium dioxide	Slip Cast, first run (1950) 2.03 1.98 1.96 1.91 1.91 1.90 Second Run (1950) 1.81 1.80 1.92 1.90 1.95 1.92 1.97 1.98 2.04 2.29 CaO stabilized (1964) 1.54 1.64 1.64 1.76 1.62 1.79 1.80 2.46 2.33 2.80 2.56 2.70 List<ref name="TPRC2G" />	766.2 899.2 1006.2 1090.2 1171.2 1233.2 386.2 470.2 553.2 632.2 734.2 839.2 961.2 1076.2 1163.2 1203.2 1343.2 1513.2 1593.2 1663.2 1743.2 2003.2 2103.2 2323.2 2413.2 2413.2 2493.2 2523.2		First Run: Density=5.35 g cm−3. Norton, F. H., Kingery, W. D., Fellows, D. M., Adams, M., McQuarrie, M. C. and Coble, R. L. USAEC Rept. NYO-596, 1–9, 1950, TPRC pages 247 and 1160<ref name="TPRC2G" /> Second Run: Same Specimen, same USAEC Report.<ref name="TPRC2G" /> CaO stabilized: Density=4.046 g cm−3 (66.3% of theoretical). Feith, A. D., Gen. Elec. Co., Adv. Tech. Service, USAEC Rept. GEMP-296, 1-25, 1964, TPRC pages 247 and 1165.<ref name="TPRC2G" /> Some recent developments include Zirconia fibrous thermal insulation for temperatures up to about 2000 Kelvins. Various conductivities less than 0.4 w m−1 K−1. Zircar Zirconia, Inc.<ref>https://zircarzirconia.com/technical-documents/thermal-conductivity-zircar-zirconia-fibrous-insulation/ retrieved January 19, 2019 at 4:49 AM EST.</ref> http://hyperphysics.phy-astr.gsu.edu/hbase/Tables/thrcn.html<ref>
Material	Thermal conductivity [W·m−1·K−1]	Temperature [K]	Electrical conductivity @ 293 K [Ω−1·m−1]	Notes

See also

• Laser flash analysis
• List of insulation materials
• R-value (insulation)
• Thermal transmittance
• Specific heat capacity
• Thermal conductivity
• Thermal conductivities of the elements (data page)
• Thermal diffusivity
• Thermodynamics

Bibliography

• David R. Lide, ed. (2003). CRC Handbook of Chemistry and Physics (84th ed.). Boca Raton, FL: CRC Press. ISBN 978-0-8493-0484-2.

External links

• aluminium profile
• Heat Conduction Calculator
• Thermal Conductivity Online Converter - An online thermal conductivity calculator
• Thermal Conductivities of Solders
• Thermal conductivity of air as a function of temperature can be found at James Ierardi's Fire Protection Engineering Site
• Non-Metallic Solids: The thermal conductivities of non-metallic solids are found in about 1286 pages in the TPRC Data Series volume 2 at the PDF link here (Identifier ADA951936): http://www.dtic.mil/docs/citations/ADA951936 with full text link https://apps.dtic.mil/dtic/tr/fulltext/u2/a951936.pdf retrieved February 2, 2019 at 10:15 PM EST.
• Gasses and Liquids: The thermal conductivities of gasses and liquids are found in the TPRC Data Series volume 3 at the PDF link here (Identifier ADA951937): http://www.dtic.mil/docs/citations/ADA951937 with full text link https://apps.dtic.mil/dtic/tr/fulltext/u2/a951937.pdf retrieved February 2, 2019 at 10:19 PM EST.
• Metals and Alloys: The thermal conductivities of metals are found in about 1595 pages in the TPRC Data Series volume 1 at the PDF link here: http://www.dtic.mil/docs/citations/ADA951935 with full text link https://apps.dtic.mil/dtic/tr/fulltext/u2/a951935.pdf retrieved February 2, 2019 at 10:20 PM EST.
• Specific Heat and Thermal Radiation: Primary sources are found in the TPRC data series volumes 4 — 9, links: https://apps.dtic.mil/dtic/tr/fulltext/u2/a951938.pdf, https://apps.dtic.mil/dtic/tr/fulltext/u2/a951939.pdf, https://apps.dtic.mil/dtic/tr/fulltext/u2/a951940.pdf, https://apps.dtic.mil/dtic/tr/fulltext/u2/a951941.pdf, https://apps.dtic.mil/dtic/tr/fulltext/u2/a951942.pdf and https://apps.dtic.mil/dtic/tr/fulltext/u2/a951943.pdf retrieved at various times February 2 and 3, 2019.
• Vacuums: Vacuums and various levels of vacuums and the thermal conductivities of air at reduced pressures are known at http://www.electronics-cooling.com/2002/11/the-thermal-conductivity-of-air-at-reduced-pressures-and-length-scales/ retrieved February 2, 2019 at 10:44 PM EST.