Sets out minimum requirements for the design of structural members cold-formed to shape from carbon or low-alloy steel sheet, strip, plate or bar not more than 25 mm in thickness and used for load-carrying purposes in buildings.

First published in Australia as AS 1538-1974. Second edition 1988. AS 1538-1988 jointly revised and redesignated AS/NZS 4600:1996. Second edition 2005.