EN 12166 Grade CuNi18Zn19Pb1 H04: High-Strength, Corrosion-Resistant Copper‑Nickel‑Zinc Alloy
Material CuNi18Zn19Pb1, mat. No. CW408J is an alloy of high strength and hardness. To the comparabel mark CuNi18Zn19Pb1, mat. No. 2.0790, 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. Machinability improves by Pb-addition, ductility decreases and cold workabiliy deteriorates. Processing properties: warm forming: unfavorable cold forming: moderately machinability: good hard and soft soldering: very good TIG-welding: moderately burnishing: good Application: Particularly in precision engineering and in toolbuilding for turning and drilling parts, in electrical engineering and electronics as well as in shipbuilding and in construction trade.
Properties
General
| Property | Temperature | Value | Comment |
|---|---|---|---|
Density | 23.0 °C | 8.4 - 8.9 g/cm³ | Typical for Wrought Copper Nickel Silver Grade |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 23.0 °C | 120 - 140 GPa | Typical for Wrought Copper Nickel Silver Grade |
Elongation | 20.0 °C | 8 % | |
Elongation A10 | 20.0 °C | 5 % | |
Elongation A100 | 20.0 °C | 2 % | |
Hardness, Vickers | 20.0 °C | 150 - 200 [-] | |
Poisson's ratio | 23.0 °C | 0.32 [-] | Typical for Wrought Copper Nickel Silver Grade |
Tensile strength | 20.0 °C | 570 MPa | |
Yield strength Rp0.2 | 20.0 °C | 460 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 | 23.0 °C | 377 J/(kg·K) | Typical for Wrought Copper Nickel Silver Grade |
Thermal conductivity | 23.0 °C | 21 - 116 W/(m·K) | Typical for Wrought Copper Nickel Silver Grade |
Chemical properties
| Property | Value |
|---|---|
Copper | 59.5 - 62.5 % |
Iron | 0.3 % |
Lead | 0.5 - 1.5 % |
Manganese | 0.7 % |
Nickel | 17 - 19 % |
Tin | 0.2 % |
Metal
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