SAE AMS4457A

Действует

Aluminum Alloy, Sheet 3.5Cu - 1.1Li - 0.50Mg - 0.40Ag - 0.12Zr (2098-T8) Solution Heat Treated, Cold Worked, and Artificially Aged

This specification covers an aluminum alloy in the form of sheet 0.125 to 0.249 inch (3.20 to 6.30 mm) incl, in nominal thickness (see 8.7).