Everything You Need to Know About Die Casting:
Die Casting Alloys
Die casting alloys are normally non-ferrous, and there is a large number available with a wide range of physical and mechanical properties covering almost every conceivable application a designer might require.
Aluminum and zinc alloys are the most widely used, and are followed by magnesium, copper, lead, tin and the newly developed zinc-aluminum (ZA) alloys.
Zinc, lead and tin-based alloys are classified as low melting point alloys, all melting at less than 725F. Zinc aluminum (ZA) alloys have a slightly higher melting range of 800F to 900F. Aluminum and magnesium alloys are considered to be moderate melting point alloys, being cast in the 1150F to 1300F range. Copper and ferrous base alloys are considered to be high melting point, over 1650F. Low melting point alloys are cast in hot chamber machines while intermediate and high melting point alloys are cast in cold chamber machines. In recent years, specially designed hot chamber machines for die casting magnesium alloys have come into use.
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