A Nickel-Copper alloy wire used mainly for its medium range electrical resistivity and very low temperature-coefficient of resistance.
45/55 Ni Cu Resistance Wire is also known as Constantan, Hecnum, Eureka, Ferry, Vernicon and Advance.
| Chemical Composition | Designations | Typical Applications | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
W.Nr. 2.0842 AWS 081 |
Power resistors, shunts, thermocouples and wire-wound precision resistors having operating temperatures up to 400 °C (750 °F). | |||||||||||||||||||||
| Density | 8.89g/cm³ | 0.321 lb/in³ |
| Electrical Resistivity at 20°C | 49 microhm • cm | 295 ohm. Circ. mil/ft |
| Maximum Operating Temperature | 400 °C | 750 °F |
| Melting Point | 1270 °C | 2320 °F |
| Coefficient of Expansion | 14.7 µm/m °C (20 – 100°C) | 8.17 x 10-6 in/in °F (70 – 212°F) |
