RW 45 (45/55 NiCu) Nickel-Copper Resistance Wire

  • W.NR 2.0842

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 400oC (750oF).

Approximate Chemical Composition
Ni 45%
Cu 55%
Properties
DENSITY 8.89 g/cm3
ELECTRICAL RESISTIVITY
AT 20 oC (microhm • cm)
AT 20 oC (ohm. Circ. Mil/ft)
 
49
295
MAXIMUM OPERATING TEMPERATURE 400 oC 750 oF
MELTING POINT 1270 oC 2320 oF
COEFFICIENT OF EXPANSION 14.7 µm/m °C
(20 - 100°C)
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