Resistivity and Temperature Coefficient Material Resistivity Micro ohms/ at 0°C Ohms / mil foot at 0°C Temperature range °C Temperature Coefficient referred to 0°C From To Aluminium 2.62 15.70 0 100 .00423 Copper 1.589 9.56 0 100 .00427 Gold 2.20 13.23 18 100 .00368 Cast Iron 74.4 447.5 - - - Hard Iron 97.8 588.3 - - - Lead 19.8 119.1 0 100 .00411 Mercury 94.07 565.9 0 100 .00086 Nickle Wire 9.9 59.55 0 100 .0039 Platinum 11.0 66.17 0 100 .00367 Silver 1.47 8.84 0 100 .00400 Soft Steel 11.8 70.98 10 35 .00423 Hard Steel 45.6 275.3 10 35 .00161 Tungsten 4.37 26.29 0 170 .0051 Zinc 5.38 32.36 18 100 .00402 Manganese 41.4 to 249 to 0 35 ..000011 73.8 443 .000039 Nichrome 100.2 657 0 400 .000231 Radium - 800 20 100 .00008

Back