Passivation helps improve the corrosion resistance and restores corrosion resistance. It provides a clean surface and eliminates iron contamination and deposits left on the surface of stainless steel during metal fabrication. These deposits, whether loose or embedded in the surface, provide breaks that can allow corrosion to begin. In passivation, a chemical bath removes surface contaminants, providing a chromium-rich, corrosion resistant surface finish on forgings, castings, stampings, and machined parts.