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EN 12166 CuNi7Zn39Pb3Mn2 R700 – Premium Wrought Copper Alloy

Material CuNi7Zn39Pb3Mn2, mat. No. CW400J, is incomparable to a DIN-mark. It is used in the form of bars, prematerial for forged parts, forged parts, wires and profiles.

Properties

General

PropertyTemperatureValue

Density

20.0 °C

8.44 - 8.5 g/cm³

Mechanical

PropertyTemperatureValueComment

Elastic modulus

20.0 °C

120 GPa

Poisson's ratio

23.0 °C

0.32 [-]

Typical for Wrought Copper Nickel Silver Grade

Tensile strength

20.0 °C

700 MPa

Yield strength Rp0.2

20.0 °C

500 MPa

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

23.0 °C

1.6E-5 - 1.9E-5 1/K

Typical for Wrought Copper Nickel Silver Grade

Melting point

875 - 1135 °C

Typical for Wrought Copper Nickel Silver Grade

Specific heat capacity

23.0 °C

377 J/(kg·K)

Typical for Wrought Copper Nickel Silver Grade

Thermal conductivity

20.0 °C

30 W/(m·K)

Electrical

PropertyTemperatureValue

Electrical conductivity

20.0 °C

3.00E+6 S/m

Specific Electrical conductivity

5 % IACS

Chemical properties

PropertyValue

Copper

47 - 50 %

Iron

0.3 %

Lead

2.3 - 3.3 %

Manganese

1.5 - 3 %

Nickel

6 - 8 %

Tin

0.2 %


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