Thermal Conductivity of Common Metals, Alloys and Materials
This Table gives typical values of thermal several common commercial metals and alloys.

Values refer to ambient temperature (0 to 25°C).

All values should be regarded as typical, since these properties are dependent on the particular type of alloy, heat treatment, and other factors. Values for specific allots can vary widely.

Thermal Conductivity of Common Metals
Name
Thermal Conductivity
W/cm K
Thermal Conductivity
W/m K
Ingot iron
0.7
AISI-SAE 1020
0.52
Stainless steel type 304
0.15
Cast gray iron
0.47
Hastelloy C
0.12
Inconel
0.15
Aluminum Pure
237
Aluminum alloy 3003, Rolled
1.9
Aluminum alloy 2014, Annealed
1.9
Aluminum alloy 360
9.8
Copper, electrolytic (ETP)
3.9
Yellow brass (high brass)
22.3
Aluminum bronze
0.7
Beryllium
218
Beryllium Copper 25
1.20.8
Cupronickel 30%
0.3
Red brass, 85%
1.6
Brass
109
Antimonial lead (hard lead)
0.35
Solder 50-50
0.5
Magnesium alloy AZ31B
1.0
Lead
35.3
Silver
429
Monel
0.3
Gold
318
Nickel (commercial)
0.9
Cupronickel 55-45 (constantan)
0.2
Titanium (commercial)
1.8
Zinc (commercial)
1.1
Zirconium (commercial)
0.2
Cement
0.29
Epoxy (Silica-Filled)
0.30
Rubber
0.16
Epoxt (unfilled)
0.59
Thermal Grease
0.8 - 3
Thermal Epoxy
1 - 7
Glass
1.1
Soil
1.5
Sandstone
2.4
Diamond
900-2320
Asphalt
0.75
Balsa
0.048
Nickel Chrome Steel
16.4
Corian
1.06
Fiberglass
0.04
Granite
1.65 - 3.9
Styrofoam
0.032
Urethane foam
0.02
Iridium
147
Hardwoods (oak, maple..)
0.16

Thermal Conductivities of Metals

k = Btu / h · ft · °F
kt = kto - a ( t - to)

Substance Temp
range, °F
kto a Substance Temp
range, °F
kto a
Metals
Tin 60 – 212 36 0.0135
Aluminum 70 – 700 130 0.03 Titanium 70 – 570 9 0.001
Antimony 70 – 212 10.6 0.006 Tungsten 70 – 570 92 0.02
Beryllium 70 – 700 80 0.027 Uranium 70 – 770 14 -0.007
Cadmium 60 – 212 53.7 0.01 Vanadium 70 20
Cobalt 70 28 Zinc 60 – 212 65 0.007
Copper 70 – 700 232 0.032 Zirconium 32 11
Germanium 70 34 Alloys:    
Gold 60 – 212 196 Admiralty metal 68 – 460 58.1 -0.054
Iron, pure 70 – 700 41.5 0.025 Brass -265 – 360 61.0 -0.066
Iron, wrought 60 – 212 34.9 0.002 (70% Cu, 30% Zn) 360 – 810 84.6 0
Steel (1% C) 60 – 212 26.2 0.002 Bronze, 7.5% Sn 130 – 460 34.4 -0.042
Lead 32 – 500 20.3 0.006 7.7% Al 68 – 392 39.1 -0.038
Magnesium 32 – 370 99 0.015 Constantan -350 – 212 12.7 -0.0076
Mercury 32 4.8 (60% Cu, 40% Ni) 212 – 950 10.1 -0.019
Molybdenum 32 – 800 79 0.016 Dural 24S (93.6% Al,
4.4% Cu,
-321 – 550 63.8 -0.083
Nickel 70 – 560 36 0.0175 1.5% Mg, 0.5% Mn) 550 – 800 130. -0.038
Palladium 70 39 Inconel X (73% Ni, 15% Cr, 7% 27 – 1,070 7.62 -0.0068
Platinum 70 – 800 41 0.0014 Fe, 2.5% Ti)      
Plutonium 70 5 Manganin (84% Cu, 12% Mn, 1,070 – 1,650 3.35 -0.0111
Rhodium 70 88 4% Ni) -256 – 212 11.5 -0.015
Silver 70 – 600 242 0.058 Monel (67.1% Ni, 29.2%
Cu, 1.7% Fe, 1.0% Mn)
-415 – 1,470 12.0 -0.008
Tantalum 212 32
Thallium 32 29 Nickel silver (64% Cu,
17% Zn, 18% Ni)
68 – 390 18.1 -0.0156
Thorium 70 – 570 17 -0.0045

Related:

References:

  • ASM Metals Reference Book, Second Edition, American Society for Metals, Metals Park, OH, 1983.
  • Lynch, C. T., CRC Practical Handbook of Materials Science, CRC Press, Boca Raton, FL, 1989.
  • Shackelford, J. F., and Alexander, W., CRC Materials Science and Engineering Handbook, CRC Press, Boca Raton, FL, 1991.
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