The surface quality of the Angle steel is specified in the standard, and the general requirement is that there should be no harmful defects in use, such as stratification, scarring, cracks, etc.
The allowable range of Angle geometry deviation is also specified in the standard, which generally includes bending degree, side width, side thickness, top Angle, theoretical weight and other items, and stipulates that Angle steel must not have significant torsion.
Imported Angle steel varieties are mostly large, small Angle steel and special shape Angle steel, export varieties are mostly medium-sized Angle steel such as No. 6, No. 7 and so on.
