Australian Standards for structural steel
The key Australian and joint Australian/New Zealand Standards for the design, supply, fabrication and protection of structural steel. Standards are copyright and can be purchased from Standards Australia or its distributors. This page summarises their scope only.
AS 4100:2020
Steel structures
The Australian design Standard for steel members and connections. Covers section classification (Section 5), member moment capacity including lateral-torsional buckling (5.6), shear (5.11), axial compression (Section 6), tension (Section 7) and combined actions (Section 8).
AS/NZS 3679.1:2016
Structural steel – Part 1: Hot-rolled bars and sections
Specifies chemical composition, mechanical properties and tolerances for hot-rolled universal beams and columns, channels, angles, flats and bars in Grades 300 and 350.
AS/NZS 3679.2:2016
Structural steel – Part 2: Welded I sections
Covers three-plate welded beams (WB) and columns (WC) fabricated from AS/NZS 3678 plate, including weld requirements and dimensional tolerances.
AS/NZS 3678:2016
Structural steel – Hot-rolled plates, floorplates and slabs
Specifies the hot-rolled plate (Grades 250, 300, 350, 400 and others) used for welded sections, base plates, stiffeners and fabricated components.
AS/NZS 1163:2016
Cold-formed structural steel hollow sections
Covers cold-formed CHS, RHS and SHS in Grades C250L0, C350L0 and C450L0, including the corner-radius and thickness tolerances used to calculate section properties.
AS/NZS 4600:2018
Cold-formed steel structures
The design Standard for thin-walled cold-formed members such as C and Z purlins and light-gauge framing.
AS 1397:2021
Continuous hot-dip metallic coated steel sheet and strip
Covers the G450, G500 and G550 zinc-coated (Z350, Z450) and zinc/aluminium coated steel strip from which purlins, girts and light-gauge framing are roll-formed.
AS/NZS 5131:2016
Structural steelwork – Fabrication and erection
Fabrication, erection, tolerances, inspection and construction categories (CC1–CC4) for structural steelwork.
AS/NZS 1554.1:2014
Structural steel welding – Welding of steel structures
Weld procedures, welder qualification, weld categories (SP and GP) and inspection requirements for structural welds.
AS/NZS 1252.1:2016
High-strength steel fastener assemblies for structural engineering
Property class 8.8 structural bolts, nuts and washers used in bolted connections designed to AS 4100.
AS/NZS 2312.1:2014 & 2312.2:2014
Guide to the protection of structural steel against atmospheric corrosion
Part 1 covers protective paint coatings and Part 2 hot-dip galvanizing; both use the external surface areas given on each section page.
AS/NZS 1170 series
Structural design actions
Defines dead, live (1170.1), wind (1170.2), snow (1170.3) and earthquake (AS 1170.4) actions and the load combinations (1170.0) that produce the design actions resisted by the capacities shown here.
AS 1100.501:2002
Technical drawing – Structural engineering drawing
Drawing conventions, section designations and symbols for structural steel drawings.
Edition years shown are the current editions known at the time of publishing. Check for amendments and newer editions before relying on a Standard.