CuNi1

CuNi1 is a copper-nickel alloy (Cu99Ni1 alloy) with low resistivity for use at temperatures up to 200°C. CuNi1 is kind of low resistance (heating) alloy. It is one of the key materials of the low-voltage electrical products. It is widely used in low-voltage circuit breaker, electric blankets, thermal overload relay and other low-voltage electrical product.

Chemical composition

Nickel %

Copper %

Manganese %

1

Bal.

-


Typical mechanical properties(1.0mm) 

Yield strength (Mpa)

Tensile Strength (Mpa)

Elongation (%)

90

210

25

 

Typical physical properties

Density (g/cm3)

8.9

Electrical resistivity at 20℃ (Ωmm2/m)

0.03

Temperature factor of resistivity(20℃~600℃)X10-5/℃

<100

Conductivity coefficient at 20℃(WmK)

145

EMF vs Cu(μV/℃ )(0~100℃)

-8

 

 Coefficient of thermal expansion

Temperature

20 ℃- 400℃

Thermal Expansion x10-6/K

17.5


Specific heat capacity

Melting point (℃)

1085

Max continuous operating temperature in air (℃)

200

Magnetic properties

Non-magnetic


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