C70500 - CuNi6
CuNi6 is a copper-nickel alloy (CuNi alloy) with low resistivity suitable for use at temperatures up to 300°C (570°F). The alloy is used in forming wires that are typically used for low-temperature applications such as heating cables.
Chemical Composition
|
Ni % |
Cu % |
| Nominal composition |
6.0 |
Bal. |
Mechanical Properties
| Wire size |
Yield strength |
Tensile strength |
Elongation |
| Ø |
Rp0.2 |
Rm |
A |
| Mm |
MPa |
MPa |
% |
| 1.00 |
100 |
280 |
30 |
Physical Properties
| Density g/cm3 |
8.9 |
| Electrical resistivity at 20°C O mm2/m |
0.10 |
Temperature Factor of Resistivity
| Temperature°C |
20 |
100 |
200 |
300 |
| Ct |
1.00 |
1.06 |
1.11 |
1.19 |
Coefficient of Thermal Expansion
| Temperature°C |
Thermal Expansion x10-6/K |
| 20 – 100 |
16 |
Thermal Conductivity
| Temperature°C |
20 |
| W m-1 K-1 |
90 |
Specific Heat Capacity
| Temperature°C |
20 |
| kJ kg-1 K-1 |
0.380 |
| Melting point °C |
1090 |
| Max continuous operating temperature in air °C |
300 |
| Magnetic properties |
The material is non-magnetic |
