Historical
SAE AMS 4111D-2007 (SAE AMS4111D-2007)
Aluminum Alloy, Forgings 7.7Zn 2.5Mg 1.5Cu 0.16Cr, Solution and Precipitation Heat Treated
This specification covers an aluminum alloy in the form of die forgings, hand forgings, and forging stock. These bars have been typically for parts requiring high strength and resistance to stress-corrosion cracking, but usage is not limited to such applications.
Society of Automotive Engineers [sae]