EN 1652 CuNi18Zn27 (R470) – High Strength, Corrosion‑Resistant Copper‑Nickel‑Zinc Alloy
Material CuNi18Zn27, mat. No. CW410J is an alloy of high strength and hardness. To the comparabel mark CuNi18Zn27, mat. No. 2.0742, acc. to DIN 17663 : 1983-12 applies: Strength is further increasable due to the high strain hardening capability. The material does not embrittle at low temperatures. Low electrical and thermal conductivity. The alloy is non-magnetic, corrosion resistance is better than for pure copper. Processing properties: warm forming: moderately cold forming: very good machinability: moderately hard and soft soldering: very good TIG-welding: very good burnishing: very good Application: In electrical engineering and electronics for springs, contacts, membranes as well as in precision engineering and in equipment manufacturing. In food industry, for musical instruments, glasses frames, safety keys as well as in construction trade for paneling, show-cases and stairrails.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 8.7 - 8.73 g/cm³ |
Mechanical
| Property | Temperature | Value |
|---|---|---|
Elastic modulus | 20.0 °C | 135 GPa |
Elongation | 20.0 °C | 20 % |
Elongation A50 | 20.0 °C | 11 % |
Poisson's ratio | 20.0 °C | 0.34 [-] |
Tensile strength | 20.0 °C | 470 - 540 MPa |
Yield strength Rp0.2 | 20.0 °C | 280 MPa |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 23.0 °C | 1.6E-5 - 1.9E-5 1/K | Typical for Wrought Copper Nickel Silver Grade |
Melting point | 875 - 1135 °C | Typical for Wrought Copper Nickel Silver Grade | |
Specific heat capacity | 20.0 °C | 380 - 383 J/(kg·K) | |
Thermal conductivity | 20.0 °C | 32 - 33 W/(m·K) |
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical conductivity | 20.0 °C | 3.30E+6 S/m |
Specific Electrical conductivity | 6 % IACS |
Chemical properties
| Property | Value |
|---|---|
Copper | 53 - 56 % |
Iron | 0.3 % |
Lead | 0.03 % |
Manganese | 0.5 % |
Nickel | 17 - 19 % |
Tin | 0.03 % |
Metal
- EN 1652 CuCo1Ni1Be TH – High-Performance Copper Alloy for Industrial Applications
- EN 1652 Grade CuNi18Zn27 R700 – Premium High‑Strength, Corrosion‑Resistant Copper Alloy
- EN 1652 Grade CuSn6 M – Premium Tin-Copper Alloy for Superior Corrosion Resistance
- EN 1652 Grade CuNi18Zn27 R540 – High-Strength, Corrosion-Resistant Copper-Nickel-Zinc Alloy
- EN 1652 Grade CuNi18Zn27 R600 – High-Strength, Corrosion-Resistant Copper-Nickel-Zinc Alloy
- EN 1652 Grade CuNi2Si M – High-Performance Copper Alloy for Superior Conductivity and Corrosion Resistance
- EN 1652 Grade CuZn39Pb0.5 R470 – High-Strength Leaded Brass for Cold Forming & Superior Machinability
- EN 1652 Grade CuNi18Zn27 R390: High Strength, Corrosion‑Resistant Copper‑Nickel‑Zinc Alloy
- EN 1652 Copper Alloy CuZn38Pb2 R470 – High-Performance Seamless Round Tubes
- EN 1652 Grade CuZn40 R470 – High‑Performance Copper Alloy for Precision Applications