AS 1397-1993 pdf free.Steel sheet and strip - Hot-dipped zinc-coated or aluminium/zinc-coated. 1.1 SCOPE This Standard specifies requirements for hot-dipped zinc-coated or aluminium/zinc-coated steel sheet and strip, supplied in thicknesses up to and including 5.0 mm. This Standard specifies requirements for steel grades, coating classes and surface finish, as follows: (a)Three formability grades of steel (b)Six structural grades of steel...