Original surface:
NO.1 surface treated with heat treatment and pickling after hot rolling. Generally used for cold-rolled materials, industrial tanks, chemical industrial equipment, etc., the thickness is thicker from 2.0MM to 8.0MM. The stainless steel pipe processing plant also has a matte surface.
After NO.2B cold rolling, it is heat-treated, pickled, and then finished rolling to make the surface moderately bright. Because the surface is smooth and easy to re-grind, it makes the surface brighter and has a wide range of uses, such as tableware, building materials, etc. After adopting the surface treatment to improve the mechanical properties, it can meet almost all purposes.
Blunt surface:
No.2D cold-rolled after heat treatment and pickling, its material is soft, the surface is silver-white luster, used for deep drawing processing, such as automotive components, water pipes, etc. Coarse sand NO.3 is a product grinded with a No. 100-120 grinding belt. It has better gloss and discontinuous rough lines. Used in building interior and exterior decoration materials, electrical products and kitchen equipment, etc. Fine sand is also a surface finishing grade product often produced by stainless steel pipe processing plants.