SAE AMS4094C
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.