SAE AMS4280J
SAE AMS4280J 2008-JUN-01 Alumnum Alloy Castngs Permanent Mold 50S - 12Cu - 05Mg 3550-T71 Soluton Heat Treated and Overaged-Composton smlar to UNS A03550
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Form
This specification covers an aluminum alloy in the form of permanent mold castings.
Application
These castings have been used typically for components requiring moderate strength and dimensional stability up to 300 °F (149 °C), but usage is not limited to such applications.