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.

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

Mixtures may have variable thermal conductivities due to composition.

Material Thermal conductivity Temperature Electrical conductivity @ 293 K
 Notes
Acrylic Glass (Plexiglas V045i) 69991866700000000000.17-0.19-0.2 7002296000000000000296 69861250000000000007.143E-15 - 5.0E-14
Air 69982425000000000000.024-0.025
0.0262 (1 bar)
0.0457 (1 bar)		 7002284250000000000273-293-298
300
600		 6985539000000000000hiAerosols2.95-loAerosols7.83×10−15 (N,21%O+0.93%Ar+0.04%CO2) (1 atm)
Alcohols OR Oils 69991570000000000000.1-0.110-0.21-0.212 7002297000000000000293-298-300
Aluminium, pure 7002226800000000000204.3-205-220-237-250
214.6
249.3		 7002379000000000000293-298
366
478		 700737593984962406037,450,000 - 37,740,000
Aluminium nitride 7002178333000000000170-175-190 7002293000000000000293 69891000099999000001×10^−11
Aluminium oxide, pure 700134000000000000026-30-35-39-40 7002293000000000000293 69881000000000000001×10^−12-
Ammonia, saturated 69995070000000000000.507 7002300000000000000300
Argon 69981738000000000000.016-0.01772-0.0179 7002299000000000000298-300
Beryllium oxide 7002259333330000000218-260-300 7002293000000000000293 69881000000000000001×10^−12
Bismuth 70007970000000000007.97 7002300000000000000300
Brass Cu63% 7002125000000000000125 7002296000000000000296 700715625000000000015,150,000 - 16,130,000 (Cu63%, Zn37%)
Brass Cu70% 7002113000000000000109 - 121 7002295000000000000293-296 700714285714285714012,820,000 - 16,130,000 (Cu70%, Zn30%)
Brick 69996875000000000000.15-0.6-0.69-1.31 7002295500000000000293-298
Bronze 700139333000000000026
42-50		 7002295000000000000293-296 7006645161290322580
5,882,000 - 7,143,000		 Sn25%
(Cu89%, Sn11%)
Calcium silicate 69994500000000000000.45 7002394000000000000394
Carbon dioxide 69981535000000000000.0146-0.01465-0.0168(sat. liquid 0.087) 7002290333000000000298-273-300(293)
Carbon nanotube 70033340000000000003180 (multiwall)-3500 (single wall)
(SWcalc.6,600-37,000)		 7002310000000000000320-300
(300-100)		 6996100000000000000(Lateral)10−16 - (Ballistic)108) SWNT(length:2.6 μm, diameter:1.7 nm)
Concrete 70001040000000000000.8 - 1.28 7002293000000000000293 ~61-67%CaO
Copper, pure 7002385755560000000385-386-390-401
368.7
353.1		 7002400500000000000293
573
873		 700759382422802850059,170,000 - 59,590,000 IACS pure =1.7×10−8Ω•m
=58.82×106Ω−1•m−1
Cork 69985500000000000000.04 - 0.07 7002293000000000000293
Cotton or Plastic Insulation-foamed 69983000000000000000.03 7002293000000000000293
Diamond, impure 70031000000000000001,000 7002283000000000000273 - 293 69841000000000000001×10^−16~ Type I (98.1% of Gem Diamonds) (C+0.1%N)
Diamond, natural 70032200000000000002,200 7002293000000000000293 69841000000000000001×10^−16~ Type-IIA (99%12C and 1%13C)
Diamond, isotopically enriched 70033320000000000003,320-41,000(99.999% 12C calc.200,000) 7002293000000000000293-104(~80) 6996100000000000000(Lateral)10−16 - (Ballistic)108 Type-IIA isotopically enriched (>99.9%12C)
Epoxy, thermally conductive 7000103509999999999 0.682 - 1.038 - 1.384
Expanded polystyrene 69983225000000000000.03-0.033((PS Only)0.1-0.13) 700219800000000000098-298(296) 69861000099999000001×10^−14 (PS+Air+CO2+CnH2n+x)
Fiberglass or Foam-glass 69984500000000000000.045 7002293000000000000293
Gallium arsenide 700156000000000000056 7002300000000000000300
Glass 70001066000000000000.8-0.93(SiO2pure1-SiO296%1.2-1.4) 7002293000000000000293 698810000000000000010−14-10−12-10−10 <1% Iron oxides
Glycerol 69992874900000000000.285-0.29 7002296500000000000300-293
Gold, pure 7002316000000000000314-315-318 7002296333330000000293-298 700745310376076121045,170,000 - 45,450,000
Granite 70002855000000000001.73 - 3.98 (72%SiO2+14%Al2O3+4%K2O etc.)
Graphene 7003507000000000000(4840±440) - (5300±480) 7002293000000000000293 7008100000000000000100,000,000
Helium II 7005100000000000000 >100000 7000220000000000000 2.2 liquid Helium in its superfluid state below 2.2 K
Ice 70002029999999999991.6-2.1-2.2-2.22 7002283000000000000293 - 273
Indium phosphide 700180000000000000080 7002300000000000000300
Iron, pure 700170555560000000071.8-72.7-79.5-80-80.2-80.4
55.4
34.6		 7002453750000000000293-298-300
573
1273		 70071014713343480509,901,000 - 10,410,000
Iron, cast 700155000000000000055 7002298000000000000298 (Fe+(2-4)%C+(1-3)%Si)
Lead, pure 700134257140000000034.7-35.0-35.3
29.8		 7002342833330000000293-298-300
573		 70064830917874396104,808,000 - 4,854,000
Limestone 70001295000000000001.26 - 1.33 Mostly CaCO3
Marble 70002505000000000002.07-2.08-2.94 7002298000000000000298 Mostly CaCO3
Methane 69983140500000000000.030-0.03281 7002285500000000000298-273
Mineral Insulation or Wool(Felt/Glass/Rock) 69984000000000000000.04 7002295500000000000293-298
Nickel 700190950000000000090.9-91 7002298000000000000298
Nitrogen, pure 69982504600000000000.0234-0.024-0.02583-0.026 7002298200000000000293-298-300 (N2) (1 atm)
Oxygen, pure (gas) 69982517000000000000.0238-0.024-0.0263-0.02658 7002297750000000000293-298-300 (O2) (1 atm)
Paper 69985000000000000000.05 7002298000000000000298
Perlite, (1 atm) 69983100000000000000.031 7002298000000000000298
Perlite, Vacuum 69971369900000999990.00137 7002298000000000000298
Plastic, fiber-reinforced 69996633300000000000.23 - 0.7 - 1.06 7002294500000000000293 - 296 699231622776601684010−15 - 100 10-40%GF or CF
Polyethylene High Density 69994650000000000000.42 - 0.51 7002298000000000000298
Polymer, High-Density 69994250000000000000.33 - 0.52 7002296000000000000296 699310000000000000010−16 - 102
Polymer, Low-density 69991950000000000000.04 - 0.16 - 0.25 - 0.33 7002294500000000000293 - 296 699131622776601684010−17 - 100
Polyurethane foam 69982050000000000000.02 - 0.021 7002298000000000000298
Quartz (single crystal) 700094000000000000012 to c axis, 6.8 to c axis 7002300000000000000300
Quartz-Fused or Vitreous Silica or Fused Silica 70001953330000000001.46-3
1.4		 7002303000000000000293
323		 69831166666666666701.333E-18 - 10−16
Rice hulls (ash) 69986200000000000000.062
Rice hulls (whole) 69983590000000000000.0359
Rubber (92%) 69991600000000000000.16 7002303000000000000303 69871000000000000001×10^−13~
Sandstone 70002365000000000001.83 - 2.90
2.1 - 3.9		 ~95-71%SiO2
~98-48%SiO2, ~16-30% Porosity
Silica Aerogel 69981560000000000000.003(carbon black9%~0.0042)-0.008-0.017-0.02-0.03 700223133300000000098 - 298 Foamed Glass
Silver, pure 7002422666670000000406-407-418
427-429-430		 7002297142860000000293
298-300		 700762169723344731061,350,000 - 63,010,000 Highest electrical conductivity of any metal
Snow, dry 69991366670000000000.05-0.11-0.25 7002273000000000000273
Sodium chloride 700135100000000000035.1 - 6.5 - 4.85 80 - 289 - 400
Soil, dry w/ organic matter 70001100000000000000.15-1.15-2 7002293000000000000293 composition may vary
Soil, saturated 70002300000000999990.6-4 7002293000000000000293 composition may vary
Solder, Sn/63% Pb/37% 700150000000000000050
Lead free solder, Sn/95.6% Ag/3.5% Cu/0.9%, Sn/95.5% Ag/3.8% Cu/0.7% (SAC) 7001600000000000000~60
Steel, carbon 700146742860000000036-4350.2-54 7002295000000000000293-298 (Fe+(1.5-0.5)%C)
Steel, stainless 700117388888888889016.3-16.7-18-24 7002296000000000000296 70061418439716312101,176,000 - 1,786,000 (Fe, Cr12.5-25%, Ni0-20%, Mo0-3%, Ti0-trace)
Thermal grease, silver-based 70008890000000000008.89+
Titanium, pure 700120180000000000015.6-19.0-21.9-22.5 7002296500000000000293-300 70062083333333333301,852,000 - 2,381,000
Titanium Alloy 70005800000000000005.8 7002296000000000000296 7005595200000000000595,200 (Ti+6%Al+4%V)
Water 69995936000000000000.563-0.596-0.6-0.609 7002290390000000000273-293-300 69975000000000000005×Pure10−6-Sweet10−3±1-Sea1 <4%(NaCl+MgCl2+CaCl2)
Water vapor 69982039500000000000.016-0.02479 (101.3 kPa)
0.0471 (1 bar)		 7002295500000000000293-398
600
Wood, +>=12% water 69992152300000000000.09091-0.16-0.21-0.4 7002295500000000000298-293 Species-Variable
Wood, oven-dry 69991053200000000000.04-0.055-0.07692-0.12-0.17 7002295500000000000293-298 Balsa-Cedar-Hickory/Oak
Zinc oxide 700121000000000000021
Material Thermal conductivity Temperature Electrical conductivity @ 293 K Notes

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