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Home » Products » Copper Nickel » C70200 CuNi2.2

C70200 CuNi2.2

C70200 CuNi2.2
C70200 CuNi2.2
Product Code : C70200
Product Description
C70200 CuNi2.2

The copper nickel alloy is the low resistivity alloy used at temperature range up to 300°C (570°F). The alloy is mainly used in heating cables in electric pillows and blankets. The medium resistivity and low temperature coefficient of resistance also make these alloys ideal for control resistors and thermocouples.

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 %

1 100 240 30

Physical Properties:
Density g/cm3 8.9
Electrical resistivity at 20°C O mm2/m 0.05

Temperature factor of resistivity:
Temperature°C 20 100 200 300
Ct 1 1.11 1.25 1.4

Coefficient of thermal expansion:
Temperature°C Thermal Expansion x10-6/K
20 - 100 16.5

Thermal conductivity:
Temperature°C 20
W m-1 K-1 130

Specific Heat Capacity:
Temperature°C 20
kJ kg-1 K-1 0.38
Melting point °C 1090
Max continuous operating temperature in air °C 300
Magnetic properties The material is non-magnetic

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