Specifies requirements for threaded steel tubes and tubulars and plain-end steel tubes, suitable for screwing as specified in AS 1722.1 with DN 8 to DN 150 inclusive (nominal size) and three wall thickness designated Light, Medium and Heavy.
AS 1074:1989 Referenced Document
AS 1391 Metallic materials — Tensile testing — Method of test at room temperature*, 2020-06-26 Update