Thermal Conductivity Values for Common Materials
On this page, you can find a list of thermal conductivity values for common materials, taken at room temperature (approximately 20°C or 68°F) and 1 atmospheric (atm) pressure. (1 atm = 101,325 Pa)
Click on the icon to switch between SI (W/m·K) and Imperial (BTU·in/hr·ft2·°F) units.
| Acrylic | 0.2 |
| Air | 0.026 |
| Aluminum | 237 |
| Asphalt | 0.9 |
| Brass | 109 |
| Brick | 0.7 |
| Bronze | 70 |
| Carbon Steel | 55 |
| Cast Iron | 50 |
| Ceramic | 175 |
| Concrete | 1.5 |
| Copper | 400 |
| Cork | 0.04 |
| Diamond | 2000 |
| Glass | 1 |
| Gold | 310 |
| Granite | 2.7 |
| Graphite | 150 |
| Gypsum | 0.25 |
| Ice | 2 |
| Iron | 80 |
| Lead | 35 |
| Magnesium | 160 |
| Marble | 2.5 |
| Mercury | 8 |
| Mica | 0.8 |
| Nickel | 90 |
| Nylon | 0.25 |
| Oil | 0.15 |
| Paper | 0.05 |
| Platinum | 70 |
| Polyethylene (PE) | 0.4 |
| Polystyrene (Styrofoam) | 0.035 |
| Polyurethane | 0.025 |
| Polyvinyl Chloride (PVC) | 0.15 |
| PTFE (Teflon) | 0.25 |
| Quartz | 1.4 |
| Rubber | 0.2 |
| Sand | 2 |
| Sapphire | 35 |
| Silicon | 130 |
| Silver | 430 |
| Snow | 0.25 |
| Stainless Steel | 15 |
| Tin | 70 |
| Titanium | 20 |
| Tungsten | 175 |
| Water | 0.6 |
| Wood (oak) | 0.2 |
| Wool | 0.045 |
| Zinc | 115 |
| Zirconium | 18 |
The values provided are approximate and can vary depending on factors such as temperature, pressure, and material purity.
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