EN 12166: CuZn37 H01 – Premium Copper Alloy for Cold Forming Applications
CuZn37 (CW508L) is an unhardenable wrought alloy. High hardness and strength parameter are achievable by cold forming only. Thermal and electrical conductivity are lower than for CuZn36. CuZn37 is the main alloy for cold forming. It shows favorable corrosion resistance to fresh water. Processing properties: warm forming: good cold forming: very good machinability: moderately hard soldering: good soft soldering: very good TIG-welding: moderately burnishing: very good CuZn37 is used for bulb bases, wire clamps for aerial lines, contact springs, metal and wooden screws, print roller and zip fastener. For the electrolytically tinned strip the coatings (Sn bright, Sn matt, Sn fuzed, SnPb) are listed by the application (better solderability, better corrosion resistance, reduction of the electrical contact resistance, better appearance) in the DIN EN 14436 : 2004-11 (Table 5)
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 8.44 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 20.0 °C | 110 GPa | |
100.0 °C | 106 GPa | ||
200.0 °C | 102 GPa | ||
300.0 °C | 97 GPa | ||
400.0 °C | 89 GPa | ||
500.0 °C | 79 GPa | ||
Elongation A10 | 20.0 °C | 8 % | |
Elongation A100 | 20.0 °C | 5 % | |
Hardness, Vickers | 20.0 °C | 130 - 165 [-] | |
Shear modulus | 23.0 °C | 40 GPa | Typical for Wrought Copper Brass |
Tensile strength | 20.0 °C | 460 - 610 MPa | |
Yield strength Rp0.2 | 20.0 °C | 380 - 420 MPa | |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 150.0 °C | 1.9E-5 1/K | |
300.0 °C | 2.1E-5 1/K | ||
650.0 °C | 2.3E-5 1/K | ||
800.0 °C | 2.4E-5 1/K | ||
Melting point | 875 - 1075 °C | Typical for Wrought Copper Brass | |
Specific heat capacity | 20.0 °C | 377 J/(kg·K) | |
Thermal conductivity | -200.0 °C | 50 W/(m·K) | |
20.0 °C | 120 W/(m·K) | ||
200.0 °C | 142 W/(m·K) | ||
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical conductivity | 20.0 °C | 1.50E+7 S/m |
200.0 °C | 1.20E+7 S/m | |
Electrical resistivity | 20.0 °C | 6.6E-8 Ω·m |
200.0 °C | 8.3E-8 Ω·m | |
Chemical properties
| Property | Value |
|---|---|
Aluminium | 0.05 % |
Copper | 62 - 64 % |
Iron | 0.1 % |
Lead | 0.1 % |
Nickel | 0.3 % |
Tin | 0.1 % |
Metal
- EN 12166 Grade CuNi18Zn20 H01 – High Strength, Corrosion-Resistant Copper–Nickel–Zinc Alloy
- EN 12166 Grade CuNi10Zn27 H01: High-Performance Copper-Nickel-Zinc Alloy Wire
- EN 12166 CuNi12Zn24 H01 – High Strength, Corrosion-Resistant Copper-Nickel-Zinc Alloy
- EN 12166: CuZn37 R700 Copper Alloy Wire – Specifications & Properties
- EN 12166 Grade CuZn38Pb2 H01 – Wrought Copper‑Brass Alloy Specification
- EN 12166 Grade CuZn37 H04 – Premium Copper Alloy for Cold Forming & Corrosion Resistance
- EN 12166 CuZn37 (CW508L) – High-Strength, Corrosion-Resistant Copper Alloy for Cold Forming
- EN 12166: CuZn37 (H08) – High‑Performance Copper Alloy for Cold Forming and Corrosion Resistance
- EN 12166 Copper Alloy CuZn37 (R290) – Properties & Specifications
- EN 12166 Grade CuZn37 R460 – High-Performance Copper Alloy Wire