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

Los datos sobre este material han sido proporcionados por WIAM.

A menos que se indique lo contrario, todas las medidas corresponden a condiciones de temperatura ambiente. A menos que se indique lo contrario, se utilizan las unidades del SI.
Las normas armonizadas son similares a uno o varios estándares del proveedor. Es posible que algunas normas armonizadas se ajusten al estándar original, mientras que otras pueden quedar fuera de su alcance.

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Propiedades

General

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

Mecánica

Property	Temperature	Value	Comment
Coeficiente de Poisson	23.0 °C	0.3 [-] Show Material materials with Coeficiente de Poisson of 0.3 [-]	Typical for Zinc Aluminium
Dureza Brinell	20.0 °C	70 - 90 [-] Show Material materials with Dureza Brinell of 70 - 90 [-]
Elongación	20.0 °C	3 - 6 % Show Material materials with Elongación of 3 - 6 %
Límite elástico Rp 0,2	20.0 °C	200 - 230 MPa Show Material materials with Límite elástico Rp 0,2 of 200 - 230 MPa
Módulo elástico	20.0 °C	130 GPa Show Material materials with Módulo elástico of 130 GPa
Resistencia a la tracción	20.0 °C	250 - 300 MPa Show Material materials with Resistencia a la tracción of 250 - 300 MPa

Aplicaciones térmicas

Property	Temperature	Value	Comment
Calor específico	20.0 °C	427 J/(kg·K) Show Material materials with Calor específico of 427 J/(kg·K)
Coeficiente de dilatación térmica	23.0 °C	2.2E-5 - 2.8E-5 1/K Show Material materials with Coeficiente de dilatación térmica of 2.2E-5 - 2.8E-5 1/K	Typical for Zinc Aluminium
Conductividad térmica	20.0 °C	92 - 100 W/(m·K) Show Material materials with Conductividad térmica of 92 - 100 W/(m·K)
Temperatura de fusión		375 - 485 °C Show Material materials with Temperatura de fusión of 375 - 485 °C	Typical for Zinc Aluminium

Eléctrico

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

Chemical properties

Property	Value
Aluminio	3.5 - 4.3 % Show Material materials with Aluminio of 3.5 - 4.3 %
Cobre	0.1 % Show Material materials with Cobre of 0.1 %
Estaño	2E-3 % Show Material materials with Estaño of 2E-3 %
Hierro	0.05 % Show Material materials with Hierro of 0.05 %
Magnesio	0.02 - 0.06 % Show Material materials with Magnesio of 0.02 - 0.06 %
Níquel	0.02 % Show Material materials with Níquel of 0.02 %
Zinc	95.4 % Show Material materials with Zinc of 95.4 %

Technological properties

Property
Processing methods	pressure die casting, separately cast test sample