EN 12165 CuZn23Al6Mn4Fe3Pb H180 – Superior Strength & Corrosion Resistance
CuZn23Al6Mn4Fe3Pb (CW 704R former identification: CuZn23Al6Mn4Fe3) is an unhardenable copper alloy. High hardness and strength values are achievable by cold forming only. Strength properties are improved by AL- and Fe- addition. Manganese and aluminium increase corrosion resistance. The alloy is seawater resistant. Processing properties: warm forming: good cold forming: unfavorable machinability: good hard soldering: unfavorable soft soldering: unfavorable burnishing: very good CuZn23Al6Mn4Fe3Pb is a construction material of very high strength, particularly for high static loading. Application for plates and tubes in condensators and heat-exchangers as well as for seawater pipes.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 8.2 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 20.0 °C | 105 GPa | |
Hardness, Brinell | 20.0 °C | 180 [-] | |
Hardness, Vickers | 20.0 °C | 190 [-] | |
Shear modulus | 23.0 °C | 40 GPa | Typical for Wrought Copper Brass |
Tensile strength | 20.0 °C | 700 MPa | |
Yield strength Rp0.2 | 20.0 °C | 500 MPa |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 23.0 °C | 1.7E-5 - 2.1E-5 1/K | Typical for Wrought Copper Brass |
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 | 27 W/(m·K) |
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical conductivity | 20.0 °C | 4.00E+6 S/m |
Specific Electrical conductivity | 6.9 % IACS |
Chemical properties
| Property | Value |
|---|---|
Aluminium | 5 - 7 % |
Copper | 63 - 65.5 % |
Iron | 2 - 3.5 % |
Lead | 1 % |
Manganese | 3.5 - 5 % |
Nickel | 0.5 % |
Metal
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