CuNi 44
Copper-nickel heating resistance alloys with high resistance to chemical corrosion and oxidation with low temperature coefficient.
Certain electrical resistance reached by wounding of wires in coils and meantime current passed through it – Heat is generating!

Chemical composition

Copper CuBal. Nickel Ni44.5% ManganeseMn1.0%

Physical properties

Material Tensile strenth, MPa Elastic limit, MPa Resistivity at 20°C (µOhm-cm) Density (g/cm3) Linear Expansion Coeff. (10-6/K) (up to 100°C) Approximate melting point, (°C)
CuNi44 400-600 200-400 8.9 49 14 1250
Recommended operating temperature in the air is 600°C


  • electrical resistors and heating wires
  • heating cables, mats and cords
  • temperature indicators and energy regulators

 CuNi44 datasheet.  Download(207KB)