PHYSICS
RESOURCES DATABASE
THERMAL
PROPERTIES
THERMAL
CONDUCTIVITIES, k
Fourier's Condution Law
dQ/dt = - k
A dT/dx
|
MATERIAL |
Thermal conductivity k ( W.m-1.K-1 ) |
|
Metals |
|
|
Aluminum |
210 |
|
Brass (yellow) |
85 |
|
Copper |
386 |
|
Gold |
293 |
|
Iron |
73 |
|
Lead |
35 |
|
Platinum |
70 |
|
Silver |
406 |
|
Steel |
~ 46 |
|
Other Solids |
|
|
Asbestos |
0.16 |
|
Brick, common red |
0.63 |
|
Cardboard |
0.21 |
|
Cement |
0.30 |
|
Down (feathers) |
0.02 |
|
Earth's crust |
1.7 |
|
Felt |
0.036 |
|
Glass Fiberglass |
0.8 0.04 |
|
Granite |
2.1 |
|
Ice |
2.2 |
|
Linen |
0.088 |
|
Paper |
0.13 |
|
Rubber, soft |
0.14 |
|
Sand, dry |
0.39 |
|
Silk |
0.04 |
|
Snow, compact |
0.21 |
|
Soil, dry |
0.14 |
|
Wood |
0.13 |
|
Liquids |
|
|
Acetone |
0.20 |
|
Benzene |
0.16 |
|
Alcohol, ethyl |
0.17 |
|
Mercury |
8.7 |
|
Oil, engine |
0.15 |
|
Vaseline |
0.18 |
|
Water |
0.58 |
|
Gases |
|
|
Air |
0.026 |
|
Carbon dioxide |
0.017 |
|
Nitrogen |
0.026 |
|
Oxygen |
0.027 |