2B and BA stainless steel plate difference

2B and BA stainless steel plate is the main difference is the annealing, 2B is annealed, pickled, the surface has a certain degree of oxidation, darker; BA light finished annealed, the surface is not oxidized, brighter.
Cold rolled - annealed pickled - - flat 2B
Cold tying - bright annealed - flat BA
Cold-drawn - annealed pickled - - flattened 2B
Cold tied - bright annealed - flat BA
The main difference is annealing, 2B is annealed, pickled, the surface has a certain degree of oxidation, darker; BA bright annealed, the surface is not oxidized, brighter.