EN 12451 CuZn30As O60 – Copper Brass Seamless Tube Grade
Material CuZn30As (CW707R) is incomparable to a DIN-make. It is used for seamless circular tubes for heat-exchanger.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 8.55 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 23.0 °C | 100 - 125 GPa | Typical for Wrought Copper Brass |
Elongation | 20.0 °C | 45 % | |
Hardness, Vickers | 20.0 °C | 75 - 105 [-] | |
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 | 130 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 | 23.0 °C | 371 - 418 J/(kg·K) | Typical for Wrought Copper Brass |
Thermal conductivity | 20.0 °C | 126 W/(m·K) |
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical conductivity | 20.0 °C | 1.63E+7 S/m |
Specific Electrical conductivity | 28 % IACS |
Chemical properties
| Property | Value |
|---|---|
Aluminium | 0.02 % |
Arsenic | 0.02 - 0.06 % |
Copper | 69 - 71 % |
Iron | 0.05 % |
Lead | 0.07 % |
Manganese | 0.1 % |
Phosphorus | 0.01 % |
Tin | 0.05 % |
Metal
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