Temperature coefficients of resistance
Temperature coefficient (α) per degree C:
Material Element/Alloy Temp. coefficient ===================================================== 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