A method for increasing the corrosion resistance of stainless steel

摘要

method for production of a colored chromfreies korrosionsschu00fctzenden layer on stainless steel, a molybdenum content of less than 1%.-%, characterized by the fact that the surface with an aqueous alkaline solution at temperatures between space and 240u00b0c treatedthe at least one chelating agent and at least one oxidant in vollentsalztem containing water and a ph value of between 12 and 14 level.