RW45 (45/55 NiCu)

This is a Nickel-Copper alloy wire used mainly for its medium range electrical resistivity and very low temperature-coefficient of resistance.

We use it normally for applications as  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)