Zinkberatung e. V. 1981 Grade G-ZnAl12Cu1 cast condition

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Description

The material ZnAl12Cu1, a fine zinc block metal alloy acc. to ASTM B 669, german marking ZA 12, is usually the first choice with the transition coming from steel, brass or aluminum. It possesses best casting bar during conventional sand casting assembly. The alloy does not exhibit best workability and has not hard places. It is outstanding pressure tight, even in thin cross sections and is on high polish sharpening and polishingable. The alloy is used mainly for sand and ingot casting, in addition, for pressure casting on cold chamber machines.

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

6.03 g/cm³

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Mechanical

PropertyTemperatureValueComment

Elastic modulus

20.0 °C

82.5 GPa

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Elongation A50

20.0 °C

1 - 5 %

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Hardness, Brinell

20.0 °C

105 - 125 [-]

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Poisson's ratio

23.0 °C

0.3 [-]

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Typical for Zinc Aluminium

Tensile strength

20.0 °C

275 - 345 MPa

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Yield strength Rp0.2

20.0 °C

206 - 220 MPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

23.0 °C

2.2E-5 - 2.8E-5 1/K

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Typical for Zinc Aluminium

Melting point

375 - 485 °C

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Typical for Zinc Aluminium

Specific heat capacity

23.0 °C

393 - 525 J/(kg·K)

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Typical for Zinc Aluminium

Thermal conductivity

23.0 °C

105 - 125 W/(m·K)

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Typical for Zinc Aluminium

Chemical properties

PropertyValue

Aluminium

10.5 - 11.5 %

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Cadmium

3E-3 %

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Copper

0.5 - 1.25 %

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Iron

0.08 %

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Lead

4E-3 %

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Magnesium

0.02 - 0.03 %

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Tin

2E-3 %

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Zinc

87.13 %

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Technological properties

Property
Processing methods

permanent mould casting