EN 1652 CuZn39Pb0.5 R340: Unhardenable Wrought Brass Alloy with Enhanced Machinability
Material CuZn39Pb0,5, mat. No. CW610N, is an unhardenable wrought alloy. to the comparable make CuZn39Pb0,5, mat. No. 2.0372 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: very good cold forming: moderately machinability: good hard soldering: moderately soft soldering: very good TIG-welding: moderately burnishing: very good Application: For plug pins, fitting parts, rivets, condenser plates, floor plate screeding and drawing instruments.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 8.4 g/cm³ |
Mechanical
| Property | Temperature | Value |
|---|---|---|
Elastic modulus | -195.0 °C | 108 GPa |
-100.0 °C | 106 GPa | |
20.0 °C | 102 - 105 GPa | |
50.0 °C | 100 GPa | |
100.0 °C | 93 GPa | |
150.0 °C | 91 GPa | |
200.0 °C | 89 GPa | |
250.0 °C | 83 GPa | |
Elongation | 20.0 °C | 30 - 43 % |
Elongation A50 | 20.0 °C | 33 % |
Elongation, transverse | 20.0 °C | 30 - 43 % |
Hardness, Vickers | 20.0 °C | 90 [-] |
Shear modulus | 20.0 °C | 37 GPa |
Tensile strength | 20.0 °C | 340 - 420 MPa |
Tensile strength, transverse | 20.0 °C | 340 MPa |
Yield strength Rp0.2 | 20.0 °C | 120 - 240 MPa |
Yield strength Rp0.2, transverse | 20.0 °C | 120 MPa |
Yield strength Rp1.0 | 50.0 °C | 140 MPa |
100.0 °C | 137 MPa | |
150.0 °C | 137 MPa | |
200.0 °C | 132 MPa | |
Yield strength Rp1.0, transverse | 20.0 °C | 140 MPa |
50.0 °C | 140 MPa | |
100.0 °C | 137 MPa | |
150.0 °C | 137 MPa | |
200.0 °C | 132 MPa | |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 200.0 °C | 2.04E-5 1/K | |
Melting point | 875 - 1075 °C | Typical for Wrought Copper Brass | |
Specific heat capacity | 23.0 °C | 371 - 418 J/(kg·K) | Typical for Wrought Copper Brass |
Thermal conductivity | 20.0 °C | 109 W/(m·K) |
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical conductivity | 20.0 °C | 1.39E+7 S/m |
Electrical resistivity | 20.0 °C | 7.2E-8 Ω·m |
Chemical properties
| Property | Value |
|---|---|
Aluminium | 0.05 % |
Copper | 59 - 60.5 % |
Iron | 0.2 % |
Lead | 0.2 - 0.8 % |
Nickel | 0.3 % |
Tin | 0.2 % |
Metal
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