Specifies requirements for formable and structural grades of hot-dip zinc-coated and aluminium/zinc-coated steel sheet and strip, up to and including 5.0 mm thick. Includes requirements for differential coatings. Gives information on coating thickness determination, fabricating characteristics and guidelines on the selection of specific grades.

First published as part of AS A20-1934. Second edition 1947. Revised and redesignated in part as AS G24-1967. Revised and redesignated as AS 1397-1973. Second edition 1977. Third edition 1984. Fourth edition 1993. Fifth edition 2001.