PRECISION WIRES INDIA LIMITED
Conductor Properties
Physical properties of annealed copper
| Density at 20°C | g/cubic centimeter | 8.890 |
| Thermal Conductivity | G.cal/mm²/sec/cm | 0.93 |
| Thermal capacity | ||
| Thermal Expansion - Linear (change in unit length at 0°C/°C |
16.8X10 -6 | |
| Melting Point | Deg C | 1083 |
| Tensile strength of annealed copper wire Ultimate strength Yield strength |
kg force /mm² kg force /mm² |
25.3-28.1 6.3-8.4 |
Electrical properties of annealed copper wire
| IACS Volume conductivity, min at 20 deg C | % | 100 min. |
| Volume resistivity, max. at 20 deg C | Ohm. mm²/m | 0.017241(1/58) |
| Weight Resistivity, Maximum at 20 deg C | Ohm gramme/meter² | 0.15328 |
| Thermal Coefficient of resistance at 20 deg C (change in unit resistance at 20 deg C/°C |
0.00393 |