Product Code:SAE AMS4311 Title:Aluminum Alloy, Rolled Or Forged Rings 5.6zn 2.5mg 1.6cu 0.23cr (7075-T7351, 7075-T352) Solution Heat Treated, Mechanically Stress Relieved, and Precipitation Heat Treated Issuing Committee:Ams D Nonferrous Alloys Committee Scope:This specification covers an aluminum alloy in the form of rolled or forged rings.