A Nickel-Copper alloy wire used mainly for its medium range
electrical resistivity and very low temperature-coefficient
of resistance.
Applications include power resistors, shunts, thermocouples and wire-wound precision resistors having operating temperatures up to 400°C.

RW 45 Characteristics
| Approximate Chemical Composition | Specification
Reference Numbers |
Electrical Resistivity at 20°C (µohm.cm) |
| Nickel 45% Copper 55% |
W.NR 2.0842 | 49 |
|
Density (g/cm3) |
Maximum Operating Temperature | Melting Point |
| 8.89 | 400°C (750°F) |
1270°C (2320°F) |
|
Coefficient of Expansion (µ m/m. °C) at 20-100°C |
Temperature Resistance Factor (F) | Electrical Resistivity at 20°C (Ohm.Circ.Mil/ft) |
| 14.7 | Click here | 295 |