Passivation is a procedure to remove the presence of free iron from the surface of stainless steel products. The presence of iron particles is one of the leading cause of rust spots which occur on the surface of stainless steel products. The passivation process involves submerging the stainless steel beam into a nitric acid solution for some period of time. The nitric acid dissolves the embedded or smeared iron and restores the original corrosion-resistant surface to the part.
Our latest passivation project was at La Mesa water treatment plant expansion project.
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