EN 12166 CuNi18Zn20 O60 – High-Strength, Corrosion-Resistant Copper Alloy
Material CuNi18Zn20, mat. No. CW409J is an alloy of high strength and hardness. To the comparabel mark CuNi18Zn20, mat. No. 2.0740, 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 | 8.73 g/cm³ |
Mechanical
| Property | Temperature | Value |
|---|---|---|
Elastic modulus | 20.0 °C | 135 GPa |
Elongation | 20.0 °C | 40 % |
Elongation A10 | 20.0 °C | 35 % |
Elongation A100 | 20.0 °C | 20 - 30 % |
Hardness, Brinell | 20.0 °C | 75 - 110 [-] |
Hardness, Vickers | 20.0 °C | 80 - 150 [-] |
Poisson's ratio | 20.0 °C | 0.34 [-] |
Tensile strength | 20.0 °C | 370 - 560 MPa |
Yield strength Rp0.2 | 20.0 °C | 180 - 290 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 | 383 J/(kg·K) | |
Thermal conductivity | 20.0 °C | 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 | 60 - 63 % |
Iron | 0.3 % |
Lead | 0.03 % |
Manganese | 0.5 % |
Nickel | 17 - 19 % |
Tin | 0.03 % |
Metal
- EN 12166 Grade CuNi18Zn20 H01 – High Strength, Corrosion-Resistant Copper–Nickel–Zinc Alloy
- EN 12166 Grade CuNi10Zn27 O60: High-Performance Copper-Nickel-Zinc Wire
- EN 12166 CuNi18Zn20 H145 – High‑Strength, Corrosion‑Resistant Brass Alloy
- EN 12166 Grade CuNi18Zn20 R660 – Premium High‑Strength Copper Alloy
- EN 12166 Grade CuNi18Zn20 R800: Premium High-Strength Copper‑Nickel‑Zinc Alloy
- EN 12166 Grade CuNi18Zn20 R480 – High Strength, Corrosion-Resistant Copper Alloy
- EN 12166 Grade CuSn5 O60 – High‑Conductivity Copper Tin Alloy for Precision Tubes and Connectors
- EN 12166 Grade CuZn39Pb3 – Leaded Brass with Enhanced Machinability
- EN 12166 Grade CuNi12Zn24 O60 – High-Strength, Corrosion-Resistant Copper-Nickel-Zinc Alloy
- EN 12166 CuZn15 O60 – Premium Copper Alloy for Electrical & Jewelry Applications