EN 12163 Grade CuNi3Si1 TB00

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CuNi3Si1, mat. No CW112C, is counted among hardenable, low alloyed copper alloys. To the comparable make CuNi3Si, mat. No 2.0857, acc. to DIN 17666 : 1983-12 applies: The material shows favorable electrical and thermal conductivity, corrosion resistance, high fatigue and creep resistance as well as favorable spring properties. CuNi3Si is in hardened condition resistant to stress corrosion. Temperature for removal of workhardening approximates 450°C. Strength still increases at low-temperature range. Processing properties: hot and cold forming: good machinability: moderately soft soldering: good hard soldering: moderately gas shielded welding: moderately burnishing: good Application: Particularly for aerial line material, such as clamps, mounting links, nuts, high-strength and corrosion resistant screws. Furthermore for wire ropes in electrical overhead line construction, bearing bushings, roller bearing cages, valve guide bushings and springs.

Related Standards

This material data has been provided by WIAM.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
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

20.0 °C

143 GPa

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20.0 °C

30 %

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Elongation A10

20.0 °C

25 %

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Elongation A100

20.0 °C

20 %

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Hardness, Brinell

20.0 °C

70 - 100 [-]

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Hardness, Vickers

20.0 °C

75 - 105 [-]

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Tensile strength

20.0 °C

300 MPa

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Yield strength Rp0.2

20.0 °C

110 MPa

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Coefficient of thermal expansion

300.0 °C

1.6E-5 1/K

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Thermal conductivity

20.0 °C

59 - 120 W/(m·K)

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Electrical conductivity

20.0 °C

8.00E+6 - 2.30E+7 S/m

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Chemical properties



0.2 %

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0.02 %

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0.1 %

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2.6 - 4.5 %

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0.8 - 1.3 %

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