EN 12164 Grade CuZn36Pb3 R340 – High‑Performance Leaded Brass Alloy
Material CuZn36Pb3, mat. No. CW603N, is an unhardenable wrought alloy. to the comparable make CuZn36Pb3, mat. No. 2.0375 acc. to DIN 17660 : 1983-12 applies: High hardness and strength parameter are achievable by cold forming only. Thermal and electrical conductivity are lower than for the unleaded brass grade of the same Zn-content. Machinability is improved by Pb-addition. Corrosion resistance to water, several saline solutions and organic liquids is also lower than for unleaded alloys of the same zinc-content. Processing properties: warm forming: good cold forming: good machinability: very good hard soldering: moderately soft soldering: very good TIG-welding: unfavorable burnishing: very good Application: for thin-walled extruded profiles e.g. construction profiles, hand rails, for stair rails, for screw machine parts in watch and electrical industry as well as for precision mechanics and optics.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 8.47 - 8.5 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 20.0 °C | 102 GPa | |
Elongation | 20.0 °C | 20 % | |
Elongation A100 | 20.0 °C | 10 % | |
Elongation A11.3 | 20.0 °C | 15 % | |
Shear modulus | 23.0 °C | 40 GPa | Typical for Wrought Copper Brass |
Tensile strength | 20.0 °C | 340 MPa | |
Yield strength Rp0.2 | 20.0 °C | 160 - 280 MPa |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 200.0 °C | 2.06E-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 | 20.0 °C | 100 W/(m·K) |
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical conductivity | 20.0 °C | 1.30E+7 S/m |
Electrical resistivity | 20.0 °C | 7.7E-8 Ω·m |
Specific Electrical conductivity | 22 % IACS |
Chemical properties
| Property | Value |
|---|---|
Aluminium | 0.05 % |
Copper | 60 - 62 % |
Iron | 0.3 % |
Lead | 2.5 - 3.5 % |
Nickel | 0.3 % |
Tin | 0.2 % |
Metal
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