AS 1397-2001 defines both mechanical strength and corrosion protection through its combination of base steel grades and metallic coatings.
Base metal grades include G250, G300, G350, G450, and G550, where the number indicates the minimum yield strength in MPa. These grades are used for everything from formable panels to high-strength structural members.
Coating types are indicated with symbols such as Z (zinc), AZ (aluminum-zinc alloy), and ZAM (zinc-aluminum-magnesium alloy). Each type is available in different coating mass levels, such as Z150 or AZ150, indicating 150 g/m² total coating mass.
The standard also sets requirements for coating adhesion, bendability, surface quality, and dimensional tolerances, making it highly suitable for forming, welding, and painting.
By combining strength and coating, AS 1397-2001 offers a wide range of options for designers and fabricators working in demanding outdoor or corrosive environments.
