Thermal Conductivity of Metals
Thermal conductivity of some common metals
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Thermal Conductivity - k - is the quantity of heat transmitted, due to unit temperature gradient, in unit time under steady conditions in a direction normal to a surface of unit area. Thermal Conductivity - k - is used in the Fourier's equation.
- 1 Btu/(hr oF ft2/ft) = 1 Btu/(hr oF ft) = 1.731 W/(m K) = 1.488 kcal/(h m oC)
| Metal | Temperature - t - (oF) |
Thermal
Conductivity - k - (Btu/(hr oF ft)) |
| Admiralty Brass | 68 | 64 |
| Aluminum, pure | 68 | 118 |
| 200 | 124 | |
| 400 | 144 | |
| Aluminum Bronze | 68 | 44 |
| Antimony | 68 | 10.7 |
| Beryllium | 68 | 126 |
| Beryllium Copper | 68 | 38 |
| Bismuth | 68 | 4.9 |
| Cadmium | 68 | 54 |
| Carbon Steel, max 0.5% C | 68 | 31 |
| Carbon Steel, max 1.5% C | 68 | 21 |
| 752 | 19 | |
| 2192 | 17 | |
| Cartridge brass (UNS C26000) | 68 | 69.4 |
| Cast Iron, gray | 70 | 27 - 46 |
| Chromium | 68 | 52 |
| Cobalt | 68 | 40 |
| Copper, pure | 68 | 223 |
| 572 | 213 | |
| 1112 | 204 | |
| Copper bronze (75% Cu, 25% Sn) | 68 | 15 |
| Copper brass (70% Cu, 30% Zi) | 68 | 64 |
| Cupronickel | 68 | 17 |
| Gold | 68 | 182 |
| Hastelloy B | 6 | |
| Hastelloy C | 70 | 5 |
| Inconel | 70 - 212 | 8.4 |
| Incoloy | 32 - 212 | 6.8 |
| Iridium | 68 | 85 |
| Iron, nodular pearlitic | 212 | 18 |
| Iron, pure | 68 | 42 |
| 572 | 32 | |
| 1832 | 20 | |
| Iron, wrought | 68 | 34 |
| Lead | 68 | 20 |
| 572 | 17.2 | |
| Manganese Bronze | 68 | 61 |
| Magnesium | 68 | 91.9 |
| Mercury | 68 | 4.85 |
| Molybdenum | 68 | 81 |
| Monel | 32 - 212 | 15 |
| Nickel | 68 | 52 |
| Nickel Wrought | 32 - 212 | 35 - 52 |
| Niobium (Columbium) | 68 | 30 |
| Osmium | 68 | 35 |
| Phosphor bronze (10% Sn, UNS C52400) | 68 | 28.9 |
| Platinum | 68 | 42 |
| Plutonium | 68 | 4.6 |
| Potassium | 68 | 57.8 |
| Red Brass | 68 | 92 |
| Rhodium | 68 | 86.7 |
| Selenium | 68 | 0.3 |
| Silicon | 68 | 48.3 |
| Silver, pure | 68 | 235 |
| Sodium | 68 | 77.5 |
| Stainless Steel | 68 | 7-26 |
| Tantalum | 68 | 31 |
| Thorium | 68 | 24 |
| Tin | 32 | 36 - 39 |
| Titanium | 68 | 11 - 13 |
| Tungsten | 68 | 94 - 100 |
| Uranium | 68 | 14 |
| Vanadium | 68 | 35 |
| Wrought Carbon Steel | 32 | 34 |
| Yellow Brass | 68 | 67 |
| Zinc | - | 67 |
| Zirconium | - | 145 |
- T(oC) = 5/9[T(oF) - 32]
- 1 Btu/(hr oF ft2/ft) = 1 Btu/(hr oF ft) = 1.731 W/(m K) = 1.488 kcal/(h m oC)
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