The surface of hot-rolled stainless steel comes in 5 grades. No.1 is the primary surface finish, which results from hot rolling to the specified thickness, followed by annealing and descaling. With sheets/coils/strips types, No. 1 finish stainless steel is characterized by its rough, dull, and non-uniform appearance. It is generally used in industrial applications where the surface finish is not critical, such as chemical tanks, piping, heat exchangers, equipment for elevated temperature service, and checker plates.