Why Should Stainless Steel Plate Be Passivated?
With the rapidly development of the global stainless steel industry, it has been widely used around the world. Some media in the air that are corrosive to stainless steel, such as chlorine, sulfur, etc. After the pickling passivation process, a chromium oxide film will form on the surface of the stainless steel, which can prevent intergranular corrosion of stainless steel by harmful ions. After the pickling passivation process, a chromium oxide film will form on the surface of the stainless steel, which can prevent intergranular corrosion of stainless steel by harmful ions. Due to the surface of stainless steel is covered with a very thin and dense passivation film, it solates the corrosive medium, and is the basic barrier of stainless steel protection. Therefore, the passivation process is indispensable for the corrosion resistance of stainless steel plate sheet.