EN 12166 CuZn36 (H190) – Premium Unhardenable Wrought Alloy for High‑Performance Applications
CuZn36 (CW507L) is an unhardenable wrought alloy. High hardness and strength parameter are achievable by cold forming only. Thermal and electrical conductivity are lower than for CuZn33. Corrosion resistance is similar to pure copper. Processing properties: warm forming: good cold forming: very good machinability: moderately hard soldering: good soft soldering: very good TIG-welding: moderately burnishing: very good CuZn36 is used for deep drawing components, pressure and punching components as well as for clockfaces. 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 | 8.4 - 8.45 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 | ||
Hardness, Vickers | 20.0 °C | 190 [-] | |
Poisson's ratio | 20.0 °C | 0.34 [-] | |
Shear modulus | 23.0 °C | 40 GPa | Typical for Wrought Copper Brass |
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 | |
Specific Electrical conductivity | 26 % IACS | |
Chemical properties
| Property | Value |
|---|---|
Aluminium | 0.02 % |
Copper | 63.5 - 65.5 % |
Iron | 0.05 % |
Lead | 0.05 % |
Nickel | 0.3 % |
Tin | 0.1 % |
Metal
- EN 12166 Grade CuZn36 R360 – Premium Beryllium Copper Alloy
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- EN 12166 Grade CuZn36 H160 – High-Performance Copper Alloy Wire
- CuZn36 (CW507L) – Grade EN 12166: High-Strength, Machinable Copper Alloy
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