Zinkberatung e. V. 1981 Grade G-ZnAl27Cu2 heat treated

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Description

The material ZnAl27Cu2, a fine zinc block metal alloy acc. to ASTM B 669, german marking ZA 27, is used with the transition coming from malleable cast iron or cast iron with nodular graphite, brass or bronze, where it depends on highest strength and strain. ZA 27 is the best alloy for operatings temperature to 120 °C. The alloy is pressure tight, even in thin cross sections. Where however highest pressure tight ones is necessary, the alloys ZnAl8 or ZnAl12 should be considered. The material is excellently machinable and 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.

Related Standards

Equivalent Materials

DIN ZP27(ZP2720)

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	5 g/cm³ Show Material materials with Densidad of 5 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	90 - 100 [-] Show Material materials with Dureza Brinell of 90 - 100 [-]
Elongación A50	20.0 °C	8 - 11 % Show Material materials with Elongación A50 of 8 - 11 %
Límite elástico Rp 0,2	20.0 °C	254 MPa Show Material materials with Límite elástico Rp 0,2 of 254 MPa
Módulo elástico	20.0 °C	75 GPa Show Material materials with Módulo elástico of 75 GPa
Resistencia a la tracción	20.0 °C	310 - 325 MPa Show Material materials with Resistencia a la tracción of 310 - 325 MPa

Aplicaciones térmicas

Property	Temperature	Value	Comment
Calor específico	23.0 °C	393 - 525 J/(kg·K) Show Material materials with Calor específico of 393 - 525 J/(kg·K)	Typical for Zinc Aluminium
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	23.0 °C	105 - 125 W/(m·K) Show Material materials with Conductividad térmica of 105 - 125 W/(m·K)	Typical for Zinc Aluminium
Temperatura de fusión		375 - 485 °C Show Material materials with Temperatura de fusión of 375 - 485 °C	Typical for Zinc Aluminium

Chemical properties

Property	Value
Aluminio	25 - 28 % Show Material materials with Aluminio of 25 - 28 %
Cadmio	3E-3 % Show Material materials with Cadmio of 3E-3 %
Cobre	2 - 2.5 % Show Material materials with Cobre of 2 - 2.5 %
Estaño	2E-3 % Show Material materials with Estaño of 2E-3 %
Hierro	0.1 % Show Material materials with Hierro of 0.1 %
Magnesio	0.01 - 0.02 % Show Material materials with Magnesio of 0.01 - 0.02 %
Plomo	4E-3 % Show Material materials with Plomo of 4E-3 %
Zinc	69.37 % Show Material materials with Zinc of 69.37 %

Technological properties

Property
Processing methods	sand casting