EN 12163 CuNi3Si1 TH: High-Performance Hardenable Copper Alloy

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.

Properties

General

Property	Temperature	Value
Density	20.0 °C	8.8 g/cm³

Mechanical

Property	Temperature	Value
Elastic modulus	20.0 °C	143 GPa
Elongation	20.0 °C	8 - 10 %
Elongation A10	20.0 °C	6 - 8 %
Elongation A100	20.0 °C	5 - 6 %
Hardness, Brinell	20.0 °C	135 - 210 [-]
Hardness, Vickers	20.0 °C	140 - 220 [-]
Tensile strength	20.0 °C	450 - 800 MPa
Yield strength Rp0.2	20.0 °C	390 - 780 MPa

Thermal

Property	Temperature	Value
Coefficient of thermal expansion	300.0 °C	1.6E-5 1/K
Thermal conductivity	20.0 °C	59 - 120 W/(m·K)

Electrical

Property	Temperature	Value
Electrical conductivity	20.0 °C	8.00E+6 - 2.30E+7 S/m

Chemical properties

Property	Value
Iron	0.2 %
Lead	0.02 %
Manganese	0.1 %
Nickel	2.6 - 4.5 %
Silicon	0.8 - 1.3 %

EN 12163 Grade CuNi3Si1 TB00 – Premium Low-Alloy Copper Alloy EN 12163 CuZn10 H060 – Premium High-Strength Copper Alloy

Metal