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Datasheet: 45/55 Ni Cu Resistance Wire
45/55 Ni Cu Resistance Wire is 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 has a medium resistivity and is often used in electrical resistance heating applications.
45/55 Ni Cu Resistance Wire is also known as Constantan, Hecnum, Eureka, Ferry, Vernicon and Advance.
Available in all profile options
45/55 Ni Cu Resistance Wire is known to be suitable for the following applications:
Power resistors, shunts, thermocouples and wire-wound precision resistors having operating temperatures up to 400 °C (750 °F).
The chemical composition of 45/55 Ni Cu Resistance Wire is indicated in the table below:
|Element||Min %||Max %|
45/55 Ni Cu Resistance Wire density, electrical resistivity, operating temperature, melting point, and coefficient of expansion is indicated in the table below:
|Density||Electrical Resistivity at 20°C||Maximum Operating Temperature||Melting Point||Coefficient of Expansion|
|8.89 g/cm³||49 microhm • cm||400 °C||1270 °C||14.7 µm/m °C (20 – 100°C)|
|0.321 lb/in³||295 ohm. Circ. mil/ft||750 °F||2320 °F||8.17 x 10-6 in/in °F (70 – 212°F)|