EN 12167 Grade CuNi2Si H150

View suppliers (8)
Want to keep this datasheet? Save it now in your required format


CuNi2Si, mat. No CW111C, is counted among hardenable, low alloyed copper alloys. To the comparable make CuBNi2Si, mat. No 2.0855, 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. CuNi2Si 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. 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.

"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.

Ashby charts

See where falls on the material property chart for against in your materials selection and design process. Our Ashby charts are interactive with more technical data upon clicking. Sign up to get access to this premium feature for free.





20.0 °C

8.8 - 8.88 g/cm³

Show Material materials with Density of 8.8 - 8.88 g/cm³



Elastic modulus

20.0 °C

130 - 143 GPa

Show Material materials with Elastic modulus of 130 - 143 GPa

Hardness, Brinell

20.0 °C

150 - 190 [-]

Show Material materials with Hardness, Brinell of 150 - 190 [-]

Poisson's ratio

20.0 °C

0.34 [-]

Show Material materials with Poisson's ratio of 0.34 [-]



Coefficient of thermal expansion

300.0 °C

1.6E-5 1/K

Show Material materials with Coefficient of thermal expansion of 1.6E-5 1/K

Specific heat capacity

20.0 °C

377 J/(kg·K)

Show Material materials with Specific heat capacity of 377 J/(kg·K)

Thermal conductivity

20.0 °C

67 - 200 W/(m·K)

Show Material materials with Thermal conductivity of 67 - 200 W/(m·K)



Electrical conductivity

20.0 °C

1.00E+7 - 2.60E+7 S/m

Show Material materials with Electrical conductivity of 1.00E+7 - 2.60E+7 S/m

Specific Electrical conductivity

34 - 45 % IACS

Show Material materials with Specific Electrical conductivity of 34 - 45 % IACS

Chemical properties



0.2 %

Show Material materials with Iron of 0.2 %


0.02 %

Show Material materials with Lead of 0.02 %


0.1 %

Show Material materials with Manganese of 0.1 %


1.6 - 2.5 %

Show Material materials with Nickel of 1.6 - 2.5 %


0.4 - 0.8 %

Show Material materials with Silicon of 0.4 - 0.8 %