About Alloys

There are a large number of alloys available with a wide range of physical and mechanical properties covering almost every conceivable application a designer might require. Available alloys include aluminum, zinc, zinc-aluminum, magnesium, copper, lead and tin. Die casting alloys are normally non-ferrous, and there is a large number available with a wide range of physical and mechanical properties
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Aluminum Alloys

Aluminum die casting alloys are lightweight, offer good corrosion resistance, ease of die casting, good mechanical properties and dimensional stability.

Although a variety of aluminum alloys made from primary or recycled metal can be used for die casting, most designers select standard alloys listed below.

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Zinc Alloys

Zinc-based alloys are the easiest for die casting. Ductility is high and impact strength is excellent, making these alloys suitable for a wide range of products. Zinc die casting provides thin walls and excellent surface smoothness making preparation for plating and painting relatively easy.

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Zinc-Aluminum Alloys

ZA alloys represent a new family of zinc-based die casting materials which contain higher aluminum content than standard zinc alloys. These alloys provide high strength characteristics plus high hardness and good bearing properties. Thin wall castability characteristics and die life are similar to zinc alloys.

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Magnesium Alloys

Magnesium alloys are noted for low weight, high strength to weight ratio, exceptional damping capacity and ease of machining. Magnesium die casting temperatures are about the same as aluminum and both hot chamber and cold chamber die casting machines are used to produce castings.
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Glossary of Terms

Click below to learn more about common die casting industry terms.

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Click below to read through frequently asked questions provided by the North American Die Casting Association.

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NADCA Tolerances

Die casting tolerances are dependent on particular features as well as the alloy being used. Click below to download tolerances provided by the North American Die Casting Association.