SIMILAR SPECIFICATIONS??UNS Z33521@ former SAE 903@ ingot is similar to ASTM B 240-79@ Alloy AG40A; and UNS Z33520@ former SAE 903@ die casting is similar to ASTM B 86-76@ Alloy AG40A. UNS Z35530@ former SAE 925@ ingot is similar to ASTM B 240-79@ Alloy AC41A; and UNS Z35531@ former SAE 925@ die casting is similar to ASTM B 86-82a@ Alloy AC41A.