Temperature Coefficients of Resistance at 20 Degrees Celsius

Material Element/Alloy “alpha” per degree Celsius
Nickel Element 0.005866
Iron Element 0.005671
Molybdenum Element 0.004579
Tungsten Element 0.004403
Aluminum Element 0.004308
Copper Element 0.004041
Silver Element 0.003819
Platinum Element 0.003729
Gold Element 0.003715
Zinc Element 0.003847
Steel* Alloy 0.003
Nichrome Alloy 0.00017
Nichrome V Alloy 0.00013
Manganin Alloy +/- 0.000015
Constantan Alloy -0.000074


* = Steel alloy at 99.5 percent iron, 0.5 percent carbon


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