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Alloy
A356 is a 7Si-0.3 Mg alloy with 0.2 Fe (max) and 0.10 Zn
(max). The T6 heat treatment is a
solution-anneal heat treat followed by a 320F aging.
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Alloy A356 has greater
elongation, higher strength and considerably higher ductility than
Alloy 356.
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Typical
applications are airframe castings, machine parts, truck chassis
parts, aircraft and missile components, and structural parts
requiring high strength
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