EN 12844 Grade GD-ZnAl4 cast condition

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Description

The material GD-ZnAl4, material NR. 2.4140, characteristic Z 400, one uses for diecastings. If there are high requirements to the accuracy to size of the products produced by diecasting, this alloy should be preferred. The material is substantially more ductile than the other high quality casting alloys. These characteristics however bought by somewhat worse physical properties and a somewhat smaller corrosion resistance in relation to intergranular corrosion in the comparison to Z 410. The casting temperature is about 425 °C (max. 450 °C) amounted to, the form temperature (pressure pouring) is on approximately 180 to max. to adjust 250 °C.

Related Standards

Equivalent Materials

This material data has been provided by WIAM.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
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

Property	Temperature	Value
Density	20.0 °C	6.6 g/cm³ Show Material materials with Density of 6.6 g/cm³

Mechanical

Property	Temperature	Value	Comment
Elastic modulus	20.0 °C	130 GPa Show Material materials with Elastic modulus of 130 GPa
Elongation	20.0 °C	3 - 6 % Show Material materials with Elongation of 3 - 6 %
Hardness, Brinell	20.0 °C	70 - 90 [-] Show Material materials with Hardness, Brinell of 70 - 90 [-]
Poisson's ratio	23.0 °C	0.3 [-] Show Material materials with Poisson's ratio of 0.3 [-]	Typical for Zinc Aluminium
Tensile strength	20.0 °C	250 - 300 MPa Show Material materials with Tensile strength of 250 - 300 MPa
Yield strength Rp0.2	20.0 °C	200 - 230 MPa Show Material materials with Yield strength Rp0.2 of 200 - 230 MPa

Thermal

Property	Temperature	Value	Comment
Coefficient of thermal expansion	23.0 °C	2.2E-5 - 2.8E-5 1/K Show Material materials with Coefficient of thermal expansion of 2.2E-5 - 2.8E-5 1/K	Typical for Zinc Aluminium
Melting point		375 - 485 °C Show Material materials with Melting point of 375 - 485 °C	Typical for Zinc Aluminium
Specific heat capacity	20.0 °C	427 J/(kg·K) Show Material materials with Specific heat capacity of 427 J/(kg·K)
Thermal conductivity	20.0 °C	92 - 100 W/(m·K) Show Material materials with Thermal conductivity of 92 - 100 W/(m·K)

Electrical

Property	Temperature	Value
Electrical conductivity	20.0 °C	1.50E+7 - 1.60E+7 S/m Show Material materials with Electrical conductivity of 1.50E+7 - 1.60E+7 S/m

Chemical properties

Property	Value
Aluminium	3.5 - 4.3 % Show Material materials with Aluminium of 3.5 - 4.3 %
Copper	0.1 % Show Material materials with Copper of 0.1 %
Iron	0.05 % Show Material materials with Iron of 0.05 %
Magnesium	0.02 - 0.06 % Show Material materials with Magnesium of 0.02 - 0.06 %
Nickel	0.02 % Show Material materials with Nickel of 0.02 %
Tin	2E-3 % Show Material materials with Tin of 2E-3 %
Zinc	95.4 % Show Material materials with Zinc of 95.4 %

Technological properties

Property
Processing methods	pressure die casting, separately cast test sample