Stainless Steel Sheet/Plate 304 Annealed No. 8 is normally used for aerospace, food and beverage, machinery, architectural, chemical, and cryogenic applications. #8 finish is the mirror finish, and comes with a protective peel-off PVC coating. 304 stainless, the most Common Stainless Steel alloy on earth, provides high strength and good corrosion resistance outside of marine and highly corrosive environments. 304 sheet/plate stock is available in full size and custom cut lengths.