Coefficients of specific resistance
Specific resistance at 20o C:
Material Element/Alloy (ohm-cmil/ft) (ohm-cm·10-6) ==================================================================== Nichrome ------- Alloy ---------------- 675 ------------- 112.2 Nichrome V ----- Alloy ---------------- 650 ------------- 108.1 Manganin ------- Alloy ---------------- 290 ------------- 48.21 Constantan ----- Alloy ---------------- 272.97 ---------- 45.38 Steel* --------- Alloy ---------------- 100 ------------- 16.62 Platinum ------ Element --------------- 63.16 ----------- 10.5 Iron ---------- Element --------------- 57.81 ----------- 9.61 Nickel -------- Element --------------- 41.69 ----------- 6.93 Zinc ---------- Element --------------- 35.49 ----------- 5.90 Molybdenum ---- Element --------------- 32.12 ----------- 5.34 Tungsten ------ Element --------------- 31.76 ----------- 5.28 Aluminum ------ Element --------------- 15.94 ----------- 2.650 Gold ---------- Element --------------- 13.32 ----------- 2.214 Copper -------- Element --------------- 10.09 ----------- 1.678 Silver -------- Element --------------- 9.546 ----------- 1.587
* = Steel alloy at 99.5 percent iron, 0.5 percent carbon.