ASTM Standard A36 Mild Steel Flat Bar can be used to form various stress-bearing components according to different structural needs. It can also be used as a connector between components and is widely used in various building structures and engineering structures. The surface quality of ASTM Standard A36 Mild Steel Flat Bar is stipulated in the standard. It is generally required that there should be no harmful defects in use, such as delamination, scarring, cracks, etc., as well as curvature, side width, side thickness, vertex angle, theoretical Weight, etc., and must have significant torsion. These will have an impact on the surface polishing process of ASTM Standard A36 Mild Steel Flat Bar.


Factors affecting the polishing performance of stainless steel flat steel:

(1) Material surface defects. Such as scratches, pitting, pickling, etc.

(2) ASTM Standard A36 Mild Steel Flat Bar material quality issues. If the hardness is too low, it will be difficult to polish during polishing (poor BQ properties). Moreover, if the hardness is too low, orange peel phenomenon will easily appear on the surface during deep drawing, which will affect the BQ properties. BQ with high hardness is relatively good.

(3) After deep drawing, small black spots and RIDGING will appear on the surface of areas with extremely large deformation, which will affect the BQ properties.