CuNi2 Resistance Wire

Copper-nickel alloy (CuNi alloy) with low resistivity for use at temperatures up to 300°C (570°F).
CuNi2.2 is typically used for low-temperature applications such as heating cables in electric blankets and pillows.

Chemical composition :
  Ni % Cu %
Nominal composition 2.2 Bal
Mechanical properties:
Wire size Yield strength Tensile strength Elongation
Ø Rp0.2 Rm A
Mm MPa MPa %
1.00 110 240 30
Physical properties:
Density g/cm3 8.9
Electrical resistivity at 20°C O mm2/m 0.05
Temperature factor of resistivity:
Temperature°C3 20 100 200 300
Ct 1.00 1.11 1.25 1.40
Coefficient of thermal expansion:
Temperature°C3 Thermal Expansion x10-6/K
20 – 100 16.5
Thermal conductivity:
Temperature°C3 20
W m-1 K-1 130
Specific heat capacity:
Temperature°C3 20
kJ kg-1 K-1 0.380
Melting point °C 1090
Max continuous operating temperature in air °C 300
Magnetic properties The material is non-magnetic

CuNi2 Resistance Wire

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