Standard mill finishes can be applied to flat rolled stainless steel directly by the rollers and by mechanical abrasives. Steel is first rolled to size and thickness and then annealed to change the properties of the final material. Any oxidation that forms on the surface (mill scale) is removed by pickling, and a passivation layer is created on the surface. A final finish can then be applied to achieve the desired aesthetic appearance.
No. 0: Hot rolled, annealed, thicker platesNo. 1: Hot rolled, annealed and passivatedNo. 2D: Cold rolled, annealed, pickled and passivatedNo. 2B: Same as above with additional pass through highly polished rollersNo. 2BA: Bright annealed (BA or 2R) same as above then bright annealed under oxygen-free atmospheric conditionNo. 3: Coarse abrasive finish applied mechanicallyNo. 4: Brushed finishNo. 5: Satin finishNo. 6: Matte finish (brushed but smoother than #4)No. 7: Reflective finishNo. 8: Mirror finishNo. 9: Bead blast finishNo. 10: Heat colored finish—offering a wide range of electropolished and heat colored surfaces
