As popular structural material, angle steel is largely used in bridge building, construction and engineering. According to the steel content, angle steel can be divided into mild steel angle and HSLA steel angle.
Mild carbon steel angle contains A36, S235JR, q235, SS400, SS490, ST37.
HSLA carbon steel angle contains A572 & A588.
According to the surface treatment, angle steel has three types – black (no treatment), hot-dip galvanized and painted.
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