EN 1652 Grade CuZn5 R270

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Description

CuZn5 (CW500L) is an unhardenable wrought alloy. High hardness and strength parameter are achievable by cold forming only. CuZn5 has a favorable conductivity, resistance to atmospheric corrosion and is ideal for enamelling. Processing properties: warm forming: moderately cold forming: good machinability: unfavorable hard and soft soldering: very good TIG-welding: good burnishing: good The material is used for installation components in electrical engineering, for shock-absorber rods, metal goods as well as in jewelry and watches industry. For the electrolytically tinned strip the coatings (Sn bright, Sn matt, Sn fuzed, SnPb) are listed by the application (better solderability, better corrosion resistance, reduction of the electrical contact resistance, better appearance) in the DIN EN 14436 : 2004-11 (Table 5)

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

8.86 - 8.9 g/cm³

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Mechanical

PropertyTemperatureValueComment

Elastic modulus

20.0 °C

127 GPa

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Elongation

20.0 °C

19 %

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Elongation A50

20.0 °C

12 %

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Poisson's ratio

20.0 °C

0.34 [-]

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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

270 - 350 MPa

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Yield strength Rp0.2

20.0 °C

200 - 300 MPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

100.0 °C

1.7E-5 1/K

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300.0 °C

1.8E-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 - 380 J/(kg·K)

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100.0 °C

386 J/(kg·K)

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200.0 °C

398 J/(kg·K)

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Thermal conductivity

-200.0 °C

128 W/(m·K)

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20.0 °C

234 - 243 W/(m·K)

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200.0 °C

272 W/(m·K)

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Electrical

PropertyTemperatureValue

Electrical conductivity

20.0 °C

3.30E+7 S/m

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Specific Electrical conductivity

57 % IACS

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Chemical properties

PropertyValue

Aluminium

0.02 %

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Copper

94 - 96 %

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Iron

0.05 %

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Lead

0.05 %

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Nickel

0.3 %

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Phosphorus

0.2 %

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Tin

0.1 %

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