Thermal Conductivity of Metals

Thermal conductivity of some common metals

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 32 13.4
  • 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)

Related Topics

  • Material Properties - Material properties - density, heat capacity, viscosity and more - for gases, fluids and solids

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