W. Nr. 2.0802
Resistance alloys and resistance heating alloys
This information is provided for guidance purposes only, this publication may include technical inaccuracies or typographical errors; changes may be made to the technical data sheet without notice. If errors are found, please submit the correction via e-mail to: webmaster@mqmetals.com.
CuNi2 is a copper-nickel alloy with lower resistivity, suitable for use at temperatures up to 200°C. It can be used for electrical resistors and resistance heating wire for heating elements.
| Ni % | Cu % | |
|---|---|---|
| Nominal Composition | 2.0 | Bal. |
|
Density g/cm3
|
8.90 |
|
Electrical resistivity at 20°C Ω mm2/m
|
0.15 |
|
Melting point °C
|
1090 |
|
Max continuous operating temperature in air °C
|
200 |
|
Temperature coefficient of resistance ppm/K
|
1100-1700 |
|
EMF against copper at 20°C μV/K
|
-12 |
| Wire | Tensile strength | Elongation |
| Ø | Rm | A |
| mm | MPa | % |
| >1mm | 220 | 25 |
| <1mm | 220 | 18 |
We are able to offer insulated CuNi2 wires and ribbons through following ways:
- Enamels: Polyester, polyurethane, polyester imine, etc.
- Teflon: FEP, PFA, ETFE, etc.
- Plastic: PP, PE, PVC, TPEE, TPX, etc.