EN 12163 Grade CuZn40Mn2Fe1 R540

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Description

CuZn40Mn2Fe1(former identification: CuZn40Mn2) is an unhardenable copper alloy. High hardness and strength parameter are achievable by cold forming only. Tensile strength and Brinell hardness are higher than at CuZn31Si1 (CW708R). Manganese increases corrosion resistance and sliding qualities. CuZn40Mn2Fe1is weathering and seawater resistant. Processing properties: warm forming: good cold forming: moderately machinability: moderately hard soldering: good soft soldering: very good TIG-welding: moderately burnishing: very good Application in apparatus and general machine engineering, for fittings and refrigerators and for shock-absorber rods. In construction trade for weathering facades, for ornamental iron parts such as iron bars, gates or crosses.

Related Standards

Equivalent Materials

This material data has been provided by WIAM.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyTemperatureValue

Density

20.0 °C

8.3 - 8.35 g/cm³

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Mechanical

PropertyTemperatureValue

Elastic modulus

20.0 °C

100 GPa

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Elongation

20.0 °C

8 %

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Elongation A10

20.0 °C

6 %

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Shear modulus

20.0 °C

38 GPa

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Tensile strength

20.0 °C

540 MPa

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Yield strength Rp0.2

20.0 °C

320 MPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

200.0 °C

1.85E-5 1/K

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Melting point

875 - 1075 °C

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Typical for Wrought Copper Brass

Specific heat capacity

20.0 °C

377 J/(kg·K)

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Thermal conductivity

20.0 °C

67 W/(m·K)

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Electrical

PropertyTemperatureValue

Electrical conductivity

20.0 °C

8.60E+6 S/m

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Electrical resistivity

20.0 °C

1.16E-7 Ω·m

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Chemical properties

PropertyValue

Aluminium

0.1 %

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Copper

57 - 59 %

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Iron

1.5 %

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Lead

0.8 %

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Manganese

1 - 2.5 %

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Nickel

1 %

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Silicon

0.1 %

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Tin

0.5 %

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