EN 12163 Grade CuCo2Be R730

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Description

Cuco2Be, mat. No CW104C, is counted among hardenable, low alloyed copper alloys. To the comparable make Cuco2Be, mat. No 2.1285, acc. to DIN 17666 : 1983-12 applies: CuCo2Be achieves compared to CuBe2 at slightly lower hardness and strength values higher electrical and thermal conductivity. The temperature for removal of workhardening approximates 500°C, high corrosion resistance. Processing properties: hot and cold forming: good machinability: moderately hard and soft soldering: good gas shielded welding: good burnishing: good Application: In relay and switch construction for high loadable, live springs and for radiant heaters at semi conductors. Furthermore for resistance and welding electrodes as well as for pistons, plunger and punching tools. 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)

Related Standards

Equivalent Materials

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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Properties

General

PropertyTemperatureValue

Density

20.0 °C

8.8 - 8.9 g/cm³

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Mechanical

PropertyTemperatureValue

Elastic modulus

20.0 °C

138 GPa

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Elongation

20.0 °C

8 %

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Elongation A100

20.0 °C

2 - 4 %

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Elongation A11.3

20.0 °C

4 - 6 %

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Tensile strength

20.0 °C

730 MPa

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Yield strength Rp0.2

20.0 °C

610 MPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

300.0 °C

1.8E-5 1/K

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Max service temperature, long

0 - 350 °C

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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

Thermal conductivity

20.0 °C

192 - 239 W/(m·K)

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Electrical

PropertyTemperatureValue

Electrical conductivity

20.0 °C

2.50E+7 - 3.20E+7 S/m

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Specific Electrical conductivity

43 % IACS

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Chemical properties

PropertyValue

Beryllium

0.4 - 0.7 %

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Cobalt

2 - 2.8 %

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Iron

0.2 %

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Nickel

0.3 %

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