Stainless Steel Surface Processing Grades, Characteristics And Uses

Original surface: NO.1 The surface that is subjected to heat treatment and pickling treatment after hot rolling. Generally used for cold-rolled materials, industrial tanks, chemical industry equipment, etc., the thickness is thicker from 2.0MM-8.0MM.

Dull surface: NO.2D After cold rolling, heat treatment and pickling, the material is soft and the surface is silvery white. It is used for deep drawing processing, such as automobile components, water pipes, etc.

Matte surface: NO.2B Cold-rolled, heat-treated, pickled, and then finish-rolled to make the surface moderately bright. Due to the smooth surface, it is easy to regrind, making the surface brighter and widely used, such as tableware, building materials, etc. With surface treatments that improve mechanical properties, it is suitable for almost all applications.

Coarse grit:NO.3 is the product ground with No. 100-120 grinding belt. Has better gloss, with discontinuous coarse lines. It is used for building interior and exterior decoration materials, electrical products and kitchen equipment, etc.

Fine sand: NO.4 The product is ground with a grinding belt with a particle size of 150-180. It has better gloss, with discontinuous rough lines, and the stripes are thinner than NO.3. It is used for baths, interior and exterior decoration materials of buildings, electrical products, kitchen equipment and food equipment.

#320:Product ground with No. 320 belt. It has better gloss, with discontinuous rough lines, and the stripes are thinner than NO.4. It is used for bathtubs, interior and exterior decoration materials of buildings, electrical products, kitchen equipment and food equipment.

Hairline surface: HL NO.4 is a product with a grinding pattern (subdivided No. 150-320) produced by continuous grinding with a polishing abrasive belt of appropriate particle size. Mainly used for architectural decoration, elevators, building doors, panels, etc.

Bright surface: BA is a product obtained by cold rolling, bright annealing, and flattening. Excellent surface gloss and high reflectivity. like a mirror surface. Used in home appliances, mirrors, kitchen equipment, decorative materials, etc.