Project Description
CuNi2 (W.Nr. 2.0802) is a copper-nickel alloy (CuNi alloy) with low resistivity for use at temperatures up to 300℃.
Equivalent Grades
Trademark | GB | GOST | ASTM | UNS | DIN | W.Nr. | NF | BS | JIS | SS |
Cuprothal 5 MWS-30 | CuNi2 (NC005) | – | Alloy 30 | – | – | 2.0802 | – | – | CN5W CN5R | – |
Chemical Composition, %
Alloy | Ni | Mn | Cu |
CuNi2 | 2 | 0.3 | 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 ℃ |
0.05±5% | 200 | 220 | 1090 | 0.38 | 130 | 8.9 | <120 | -12 |
Features
- Good resistance consistency
- Superior stability
Applications
- Low-voltage circuit breaker
- Thermal overload relay
- Heating cables
- Fuses
- Shunts
- Resistors
- Controllers