EN 12163 – CuCr1Zr R370: Premium Low‑Alloy Copper Alloy
CuCr1Zr, mat. No CW106C, is counted among hardenable, low alloyed copper alloys. To the comparable make CuCrZr, mat. No 2.1293, acc. to DIN 17666 : 1983-12 applies: The strength values of CuCrZr are more favorable than of CuCr especially at higher temperatures. CuCrZr shows the following properties: high strength at room temperature, high temperature for removal of workhardening, high creep strength, no notch sensitivity at increased temperatures. Temperature for removal of workhardening approximates 500°C. Favorable electrical and thermal conductivity. Processing properties: hot and cold forming: good machinability: moderately soft soldering: moderately hard soldering: moderately gas shielded welding: moderately burnishing: good Application: For live springs and contacts, electrodes for resistance welding.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 8.8 - 8.92 g/cm³ |
Mechanical
| Property | Temperature | Value |
|---|---|---|
Elastic modulus | 20.0 °C | 130 GPa |
Elongation | 20.0 °C | 16 % |
Elongation A100 | 20.0 °C | 8 % |
Elongation A11.3 | 20.0 °C | 12 % |
Tensile strength | 20.0 °C | 370 MPa |
Yield strength Rp0.2 | 20.0 °C | 250 MPa |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 100.0 °C | 1.63E-5 1/K | |
200.0 °C | 1.7E-5 1/K | ||
300.0 °C | 1.76E-5 1/K | ||
Melting point | 855 - 1090 °C | Typical for Wrought Copper High Copper Alloy | |
Specific heat capacity | 23.0 °C | 360 - 420 J/(kg·K) | Typical for Wrought Copper High Copper Alloy |
Thermal conductivity | 20.0 °C | 320 W/(m·K) | |
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical conductivity | 20.0 °C | 4.30E+7 - 4.60E+7 S/m |
Specific Electrical conductivity | 74 - 79 % IACS |
Chemical properties
| Property | Value |
|---|---|
Chromium | 0.5 - 1.2 % |
Iron | 0.08 % |
Silicon | 0.1 % |
Zirconium | 0.03 - 0.3 % |
Metal
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