What is the standard of Stainless Steel Finishes?

MILL Finish

# Description Remarks
1 Hot-rolled, annealed and pickled (HRAP) Pretty rough, not smooth, usually not polish anything
2D Cold-rolled, softened show uniformity, matt finish
2B Cold-rolled, softened, lightly rolled on polished rolls Smooth finish, shows thin reflective film
BA Bright Annnealed Cold-rolled reflective finish

Mechanically Polished Finish

# Description Remarks
3 Ground Approximately about 100-180 grit size
4 Hairline “Brushed” Approximately 120-240 grit, has a grained texture, not to reflective
8 Mirror Polished Highly reflective finish, with medium degree of image clarity