EN 12167 Grade CuZn35Ni3Mn2AlPb R440

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Description

CuZn35Ni3MnAlPb (CW710R former identification: CuZn35Ni2) is an unhardenable copper alloy. High hardness and strength parameter are achievable by cold forming only. Nickel improves strength properties, corrosion resistance and high-temperature resistance. CuZn35Ni3MnAlPb shows favorable weathering and freshwater resistance. Processing properties: warm forming: good cold forming: moderately machinability: moderately hard soldering: moderately soft soldering: unfavorable TIG-welding: good burnishing: very good Application in machine, apparatus and plant engineering, in shipbuilding e.g. for boat propeller shafts (seawater resistance).

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

8.28 - 8.3 g/cm³

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Mechanical

PropertyTemperatureValueComment

Elastic modulus

20.0 °C

93 GPa

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Elongation

20.0 °C

10 %

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Shear modulus

23.0 °C

40 GPa

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Typical for Wrought Copper Brass

Tensile strength

20.0 °C

440 MPa

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Yield strength Rp0.2

20.0 °C

180 - 200 MPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

23.0 °C

1.7E-5 - 2.1E-5 1/K

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Typical for Wrought Copper Brass

Melting point

875 - 1075 °C

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Typical for Wrought Copper Brass

Specific heat capacity

23.0 °C

371 - 418 J/(kg·K)

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Typical for Wrought Copper Brass

Thermal conductivity

20.0 °C

50 W/(m·K)

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Electrical

PropertyTemperatureValue

Electrical conductivity

20.0 °C

5.90E+6 S/m

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Specific Electrical conductivity

10 % IACS

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Chemical properties

PropertyValue

Aluminium

0.3 - 1.5 %

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Copper

58 - 61 %

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Iron

0.5 %

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Lead

0.2 - 0.8 %

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Manganese

1.5 - 2.5 %

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Nickel

2 - 3 %

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Silicon

0.1 %

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Tin

0.5 %

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