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AM Wire Pte Ltd,
3, Rhu Cross,
#06-03, Costa Rhu,
Singapore 437433

Tel: (65) 9617 5912

45/55 Ni Cu Resistance Wire
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45/55 Ni Cu Resistance Wire

Available in any of the 'profile options'

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
Element Min Max
C 0.10
Si 0.50
Mn 1.00
Fe 1.00
Cu 55.00 nominal
Ni bal
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)

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