W. Nr. 2.0881
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.
CuNi 23 is a copper-nickel alloy with lower resistivity than CuNi44, suitable for use at temperatures up to 300°C. CuNi 23 can be used for electrical resistors and resistance heating wire for heating elements.
| Ni % | Mn % | Cu % | |
|---|---|---|---|
| Nominal Composition | 23.0 | 0.5 | Bal. |
|
Density g/cm3
|
8.90 |
|
Electrical resistivity at 20°C Ω mm2/m
|
0.30 |
|
Melting point °C
|
1150 |
|
Max continuous operating temperature in air °C
|
300 |
|
Temperature coefficient of resistance ppm/K
|
150-210 |
|
EMF against copper at 20°C μV/K
|
-34 |
| Wire | Tensile strength | Elongation |
| Ø | Rm | A |
| mm | MPa | % |
| >1mm | 350 | 25 |
| <1mm | 350 | 20 |
We are able to offer insulated CuNi23 wires and ribbons through following ways:
- Enamels: Polyester, polyurethane, polyester imine, etc.
- Teflon: FEP, PFA, ETFE, etc.
- Plastic: PP, PE, PVC, TPEE, TPX, etc.