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SAE AMS 4141H-2021
Aluminum Alloy Die Forgings 5.6Zn - 2.5Mg - 1.6Cu - 0.23Cr (7075-T73) Solution and Precipitation Heat Treated
This specification covers an aluminum alloy in the form of die forgings up to 6 inches in thickness and forging stock of any size ordered to inch/pound units (see 8.8 ).
Society of Automotive Engineers [sae]