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EN 12167 Grade CuZn40Mn1Pb1AlFeSn R490 – Premium Brass Alloy for Industrial Applications

Material CuZn40Mn1Pb1AlFeSn (CW721R) is used in the form of rods, hollow rods, profiles, forging prematerial and forged parts.

Properties

General

PropertyTemperatureValue

Density

20.0 °C

8.3 g/cm³

Mechanical

PropertyTemperatureValueComment

Elastic modulus

20.0 °C

96 GPa

Shear modulus

23.0 °C

40 GPa

Typical for Wrought Copper Brass

Tensile strength

20.0 °C

490 MPa

Yield strength Rp0.2

20.0 °C

320 MPa

Thermal

PropertyTemperatureValueComment

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

88 W/(m·K)

Electrical

PropertyTemperatureValue

Electrical conductivity

20.0 °C

9.00E+6 S/m

Specific Electrical conductivity

15.5 % IACS

Chemical properties

PropertyValue

Aluminium

0.3 - 1.3 %

Copper

57 - 59 %

Iron

0.2 - 1.2 %

Lead

0.8 - 1.6 %

Manganese

0.8 - 1.8 %

Nickel

0.3 %

Tin

0.2 - 1 %


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