Heat Transfer Table of Content

Properties of Metals - Thermal Conductivity, Density, Specific Heat 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

k t = k to - a ( t - t o ) Substance Temp

range, °F k to a Substance Temp

range, °F k to 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: Thermal Conductivity, Heat Transfer - Engineers Edge

Insulation Material Thermal Conductivity Chart

Thermal Conductivity of Gases Chart

Thermal Properties of Metals, Conductivity, Thermal Expansion, Specific Heat 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.