Stainless steel surface finish grade

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

Blunt surface: NO.2D cold rolling after heat treatment, pickling, its material is soft, the surface is silver-white luster, for deep stamping processing, such as automotive components, water pipes and so on.

Fog surface: NO.2B cold rolling after heat treatment, pickling, and then finish rolling processing to make the surface for moderate brightness. Because the surface is smooth, easy to re-grind, make the surface more bright, widely used, such as tableware, building materials and so on. Almost all applications are satisfied with surface treatments that improve mechanical properties.

Coarse sand NO.3 Grinding products with No. 100-120 grinding belt. Has a better gloss, with discontinuous coarse grain. Used for interior and exterior decoration materials, electrical products and kitchen equipment, etc.

Fine sand: NO.4 Grinding products with 150-180 particle size grinding belt. Has a better gloss, with discontinuous coarse lines, stripes thinner than NO.3. Used for bath, interior and exterior decoration materials, electrical products, kitchen equipment and food equipment, etc.

#320 Products grinding with No. 320 grinding strip. Has a better gloss, with discontinuous coarse lines, stripes thinner than NO.4. Used in bath, building interior and exterior decoration materials, electrical products, kitchen equipment and food equipment.

HAIRLINE: HLNO.4 Continuous grinding of the appropriate granularity of the polishing belt to produce the grinding pattern of the product (subdivision 150-320). Mainly used in building decoration, elevator, building doors, panels, etc.

Bright surface: BA after cold rolling with bright annealing, and through the smooth product. Excellent surface gloss and high reflectivity. A mirror-like surface. Used in household appliances, mirrors, kitchen equipment, decorative materials, etc.