CuNi30 (UNS C71580) is a copper-nickel alloy (CuNi alloy) with medium resistivity suitable for use at temperatures up to 400℃.
Equivalent Grades
| Trademark | GB | GOST | ASTM | UNS | DIN | W.Nr. | NF | BS | JIS | SS |
| – | CuNi30
(NC035) | МНЖМц30-1-1 | – | – | – | – | – | – | – | – |
Chemical Composition, %
| Alloy | Ni | Mn | Cu |
| CuNi30 | 30 | 1.0 | Bal |
Typical Mechanical and Physical Properties
| Resistivity, 20℃ μΩ·m | Max.working Temperature, ℃ | Tensile Strength, MPa | Melting Point, ℃ | Specific Heat, J/gk | Thermal Conductivity, 20℃ W/mk | Density, g/cm3 | TCR x10-6/ ℃, 20-600℃ | EMF vs Cu, μV/℃, 0-100 ℃ |
| 0.35±5% | 350 | 400 | 1170 | 0.38 | 27 | 8.9 | <10 | -37 |
Features
- Good resistance consistency
- Superior stability
Applications
- Low-voltage circuit breaker
- Thermal overload relay
- Heating cables
- Fuses
- Shunts
- Resistors
- Controllers
