EN 12167 Grade CuNi2Si R600: High-Performance Hardenable Copper Alloy
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)
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 8.8 - 8.88 g/cm³ |
Mechanical
| Property | Temperature | Value |
|---|---|---|
Elastic modulus | 20.0 °C | 130 - 143 GPa |
Elongation | 20.0 °C | 10 % |
Elongation A100 | 20.0 °C | 4 % |
Elongation A11.3 | 20.0 °C | 6 % |
Poisson's ratio | 20.0 °C | 0.34 [-] |
Tensile strength | 20.0 °C | 600 MPa |
Yield strength Rp0.2 | 20.0 °C | 520 MPa |
Thermal
| Property | Temperature | Value |
|---|---|---|
Coefficient of thermal expansion | 300.0 °C | 1.6E-5 1/K |
Specific heat capacity | 20.0 °C | 377 J/(kg·K) |
Thermal conductivity | 20.0 °C | 67 - 200 W/(m·K) |
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical conductivity | 20.0 °C | 1.00E+7 - 2.60E+7 S/m |
Specific Electrical conductivity | 34 - 45 % IACS |
Chemical properties
| Property | Value |
|---|---|
Iron | 0.2 % |
Lead | 0.02 % |
Manganese | 0.1 % |
Nickel | 1.6 - 2.5 % |
Silicon | 0.4 - 0.8 % |
Metal
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