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

Diese Materialdaten wurden von WIAM zur Verfügung gestellt

Alle Daten beziehen sich auf Raumtemperatur soweit nicht anderweitig spezifiziert. SI Einheiten werden verwendt soweit nicht anderweitig spezifiziert.
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Eigenschaften

Allgemein

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

Mechanisch

Property	Temperature	Value	Comment
Dehnung	20.0 °C	3 - 6 % Show Material materials with Dehnung of 3 - 6 %
Elastizitätsmodul	20.0 °C	130 GPa Show Material materials with Elastizitätsmodul of 130 GPa
Härte, Brinell	20.0 °C	70 - 90 [-] Show Material materials with Härte, Brinell of 70 - 90 [-]
Poissonzahl	23.0 °C	0.3 [-] Show Material materials with Poissonzahl of 0.3 [-]	Typical for Zinc Aluminium
Streckgrenze Rp 0,2	20.0 °C	200 - 230 MPa Show Material materials with Streckgrenze Rp 0,2 of 200 - 230 MPa
Zugfestigkeit	20.0 °C	250 - 300 MPa Show Material materials with Zugfestigkeit of 250 - 300 MPa

Thermisch

Property	Temperature	Value	Comment
Koeffizient der thermischen Ausdehnung	23.0 °C	2.2E-5 - 2.8E-5 1/K Show Material materials with Koeffizient der thermischen Ausdehnung of 2.2E-5 - 2.8E-5 1/K	Typical for Zinc Aluminium
Schmelzpunkt		375 - 485 °C Show Material materials with Schmelzpunkt of 375 - 485 °C	Typical for Zinc Aluminium
Spezifische Wärmekapazität	20.0 °C	427 J/(kg·K) Show Material materials with Spezifische Wärmekapazität of 427 J/(kg·K)
Wärmeleitfähigkeit	20.0 °C	92 - 100 W/(m·K) Show Material materials with Wärmeleitfähigkeit of 92 - 100 W/(m·K)

Elektrisch

Property	Temperature	Value
Elektrische Leitfähigkeit	20.0 °C	1.50E+7 - 1.60E+7 S/m Show Material materials with Elektrische Leitfähigkeit 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 %
Eisen	0.05 % Show Material materials with Eisen of 0.05 %
Kupfer	0.1 % Show Material materials with Kupfer of 0.1 %
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 %
Zink	95.4 % Show Material materials with Zink of 95.4 %
Zinn	2E-3 % Show Material materials with Zinn of 2E-3 %

Technological properties

Property
Processing methods	pressure die casting, separately cast test sample