JIS G3114 SMA400AP weathering steel

SMA400AP steel is a hot-rolled steel plate resistant to atmospheric corrosion for welded structures with excellent weathering resistance. SMA400AW weathering steel is mainly used for steel structures exposed to the atmosphere for a long time, such as railways, vehicles, bridges, towers, photovoltaics, and high-speed projects.

JIS G3114 SMA400AP weathering steel, also known as atmospheric corrosion-resistant steel, is a low-alloy steel series between ordinary steel and stainless steel. It can form a dense oxide protective film in the natural environment. This film not only effectively blocks the erosion of the external environment on the steel plate, but also has the ability to self-repair, maintain good stability, and greatly extend the service life.

SMA400AP Weather Resistant steel implements the standard: JIS G3114-2004 atmospheric corrosion resistant hot-rolled steel for welded structures. Other grades under this standard include SMA400AW, SMA400BW, SMA400BP, SMA400CW, SMA400CP, SMA490AW, SMA490AP, SMA490BW, SMA490BP, SMA490CW, SMA490CP, SMA570W, and SMA570P.

Chemical Composition of SMA400AP Weather Resistant steel

The chemical composition of JIS G3125 SMA400AP ensures its corrosion resistance and mechanical strength.

Mechanical Properties of SMA400AP Weathering steel

The mechanical properties of SMA400AP ensure its reliability in structural applications. The values vary based on thickness and testing conditions.

Equivalent Steel Grades to SMA400AP Weathering steel

SMA400AP can be compared to other international weathering steel grades with similar properties and applications.

Conventional Dimensions:

Thickness: 6 mm to 100 mm
Width: 1000 mm to 3000 mm
Length: 3000 mm to 12000 mm (custom lengths available upon request)