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 Cu Bal. Nickel Ni 44.5% Manganese Mn 1.0%

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

Applications:

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

 CuNi44 datasheet. Download(207KB)