Conductivities Thermal of Various Materials
Thermal Conductivity 25C / 77F W/m/K Acetone Acrylic Air Alcohol Aluminum, Pure Aluminum, Alloy Aluminum Oxide Ammonia Antimony Argon Asbestos mill board Asbestos, loosely packed Asbestos-cement Asbestos-cement board Asbestos-cement sheets Asphalt Balsa Benzene Beryllium Bitumen Brass Brick dense Brick work Cadmium Carbon Carbon Steel Cement, mortar Cement, portland Chalk Class, window Cobalt Concrete, light Concrete, stone Constantan Copper 0.160 0.20 0.024 0.170 250 177 30 0.022 18.5 0.016 0.140 0.150 2.1 0.74 0.166 0.75 0.048 0.160 218 0.170 109 1.31 0.69 92 1.70 54 1.73 0.29 0.090 0.96 69 0.42 1.70 22 401 Thermal Conductivity 25C / 77F W/m/K Corian (ceramic filled) Cork, ground Cork, regranulated Corkboard Cotton Cotton Wool insulation Diatomaceous earth Earth, dry Epoxy Ether Felt insulation Fiber hardboard Fiber insulating board Fiberglass Fireclay brick 500 C Foam Glass Gasoline Glass Glass, Pearls, dry Glass, Pearls, saturated Glass, wool Insulation Glycerol Gold Gypsum or plaster board Hair felt Hardboard high density Hardwoods Helium Hydrogen Ice Iridium Iron Iron, cast Iron, wrought Kapok insulation
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Material/Substance
Btu/h/ft/R 0.092 0.12 0.014 0.098 144 102 17 0.013 10.7 0.009 0.081 0.087 1.2 0.43 0.096 0.43 0.028 0.092 126 0.098 63 0.76 0.40 53 0.98 31 1.00 0.17 0.052 0.55 40 0.24 0.98 13 232
Material/Substance
1.06 0.043 0.044 0.043 0.030 0.029 0.060 1.50 0.35 0.140 0.040 0.20 0.048 0.040 1.40 0.042 0.150 1.39 0.180 0.76 0.040 0.28 310 0.170 0.050 0.150 0.160 0.142 0.168 2.2 147 80 55 59 0.034
Btu/h/ft/R 0.61 0.025 0.025 0.025 0.017 0.017 0.035 0.87 0.20 0.081 0.023 0.12 0.028 0.023 0.81 0.024 0.087 0.80 0.104 0.44 0.023 0.16 179 0.098 0.029 0.087 0.092 0.082 0.097 1.3 85 46 32 34 0.020
Material/Substance Kerosene Lead Pb Leather, dry Magnesia insulation Magnesium Marble Mercury Methane Methanol Mica Mineral wool blanket Molybdenum Monel Nickel Nitrogen Nylon 6 Oil, machine Olive oil Oxygen Paper Paraffin Wax Perlite, atm pressure Perlite, vacuum Plaster, gypsum Plaster, metal lath Plaster, wood lath Plastics, foamed Platinum Plywood Polystyrene expanded Porcelain PTFE PVC Pyrex glass Quarts mineral Rock Wool insulation
Thermal Conductivity 25C / 77F W/m/K 0.150 35 0.140 0.070 156 2.6 8.0 0.030 0.21 0.71 0.040 138 26 91 0.024 0.25 0.150 0.170 0.024 0.050 0.25 0.031 0.00137 0.48 0.47 0.28 0.030 70 0.130 0.030 1.50 0.25 0.190 1.01 3.0 0.045
Btu/h/ft/R 0.087 20 0.081 0.040 90 1.5 4.6 0.017 0.12 0.41 0.023 80 15 53 0.014 0.14 0.087 0.098 0.014 0.029 0.14 0.018 0.00079 0.28 0.27 0.16 0.017 40 0.075 0.017 0.87 0.14 0.110 0.58 1.7 0.026
Material/Substance Sand, dry Sand, saturated Sandstone Sawdust Silica aerogel Silicone oil Silver Sodium Softwoods Stainless Steel Steel Straw insulation Styrofoam Tin Sn Urethane foam Vermiculite Vinyl ester Water Wool, felt Zinc Zn
Thermal Conductivity 25C / 77F W/m/K 0.35 2.7 1.70 0.080 0.020 0.100 429 84 0.120 16.0 46 0.090 0.026 67 0.021 0.058 0.25 0.58 0.070 116
Btu/h/ft/R 0.20 1.6 0.98 0.046 0.012 0.058 248 49 0.069 9.2 27 0.052 0.015 39 0.012 0.034 0.14 0.34 0.040 67
Values from various sources, not checked against other sources.