This specification covers a copper-zinc alloy (brass) in the form of laminated sheet. This sheet has been used typically for shims in which thickness is adjusted by removal of laminations as required, but usage is not limited to such applications.
SAE AMS4508H-2000 Referenced Document
ASTM B248-98 Standard Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar
ASTM B248M-96 Standard Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip and Rolled Bar [Metric]