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Cu-Nickel Alloys

 Principally destined for the manufacturing of low temperatures electric resistances so as heating cables, shunts, resistances for automobile, they have a maximum operating temperature of 400 °C.They do not therefore intervene in the field of resistances for industrial furnaces.

Those are alloys of chemical composition copper + nickel with addition of manganese with a low resistivity (from 0.49 to 0.05 Ohm mm²/m)

 The most known, CuNi 44 (also called Constantan) presents the advantage of a very low temperature coefficient.

 Their advantages are the following:

  • Very good resistance to corrosion

  • Very good malleability

  • Very good solderability


 

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