| Thermal conductivity @20° C in W/mK | |
| Diamond | 1000 |
| Silver | 406 |
| Copper | 390 |
| Gold | 314 |
| Aluminium | 237 |
| Brass | 109 |
| Iron | 79.5 |
| Steel | 50.2 |
| Lead | 34.7 |
| Aluminium Oxide | 30 |
| Stainless Steel | 16 |
| Mercury | 8.3 |
| Quartz | 3 |
| Marble | 3 |
| Sand (saturated) | 2.7 |
| Ice | 2.1 |
| Corian (ceramic filled) | 1.06 |
| Pyrex 7740 | 1.005 |
| Glass,ordinary | 0.8 |
| Concrete | 0.8 |
| Water | 0.6 |
| Brick, red | 0.6 |
| Wood | 0.4 |
| Sand (dry) | 0.35 |
| Glycerol | 0.29 |
| Nylon 6 | 0.25 |
| Methanol | 0.21 |
| Hydrogen | 0.172 |
| Olive oil | 0.17 |
| Alcohol | 0.17 |
| PVC | 0.16 |
| Gasoline | 0.15 |
| Brick,insulating | 0.15 |
| Leather | 0.14 |
| Helium | 0.138 |
| Wood | 0.12 |
| Snow (dry) | 0.104 |
| Silicone oil | 0.1 |
| Asbestos | 0.08 |
| Cork | 0.07 |
| Foam glass | 0.045 |
| Wool felt | 0.04 |
| Mineral insulation materials | 0.04 |
| Fiberglass | 0.04 |
| Cork board | 0.04 |
| Polystyrene (styrofoam) | 0.033 |
| Plastic insulation materials | 0.03 |
| Cotton | 0.03 |
| Air | 0.025 |
| Oxygen | 0.0238 |
| Nitrogen | 0.0234 |
| Polyurethane | 0.02 |