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EN 12164 CuZn40Mn1Pb1AlFeSn R450 Brass – High Strength, Low Lead, Ideal for Forged Parts

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

Elongation

20.0 °C

16 %

Shear modulus

23.0 °C

40 GPa

Typical for Wrought Copper Brass

Tensile strength

20.0 °C

450 MPa

Yield strength Rp0.2

20.0 °C

220 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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