EN 12163 Grade CuNi2Be R680

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CuNi2Be, mat. No CW110C, is counted among hardenable, low alloyed copper alloys. To the comparable make CuNi2Be, mat. No 2.0850, acc. to DIN 17666 : 1983-12 applies: The alloy shows high tensile strength and high temperature resistance and mean electrical and favorable thermal conductivity. Processing properties: hot and cold forming: good machinability: moderately hard and soft soldering: good gas shielded welding: good burnishing: good Application: For resistance welding electrodes as well as for springs. For the electrolytically tinned strip the coatings (Sn bright, Sn matt, Sn fuzed, SnPb) are listed by the application (better solderability, better corrosion resistance, reduction of the electrical contact resistance, better appearance) in the DIN EN 14436 : 2004-11 (Table 5)

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This material data has been provided by WIAM.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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20.0 °C

8.8 g/cm³

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Elastic modulus

23.0 °C

110 - 130 GPa

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Typical for Wrought Copper High Copper Alloy


20.0 °C

8 %

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Elongation A100

20.0 °C

4 %

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Elongation A11.3

20.0 °C

6 %

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Tensile strength

20.0 °C

680 MPa

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Yield strength Rp0.2

20.0 °C

540 MPa

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Coefficient of thermal expansion

23.0 °C

1.6E-5 - 1.8E-5 1/K

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Typical for Wrought Copper High Copper Alloy

Melting point

855 - 1090 °C

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Typical for Wrought Copper High Copper Alloy

Specific heat capacity

23.0 °C

360 - 420 J/(kg·K)

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Typical for Wrought Copper High Copper Alloy



Electrical conductivity

20.0 °C

3.80E+7 S/m

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Specific Electrical conductivity

65 % IACS

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Chemical properties



0.2 - 0.6 %

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0.3 %

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0.2 %

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1.4 - 2.4 %

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