SAE AMS4094
Aluminum Alloy, Sheet and Plate, Alclad 6.3cu 0.30mn 0.18zr 0.10v 0.06ti Alclad 2219-T81 Sheet Solution Heat Treated, Cold Worked, and Precipitation Heat Treated Alclad 2219-T851 Plate Solution Heat Treated, Stress Relieved and Precipitation Heat Treated.