Passivation Stainless steel can corrode in service if there is exposed iron contamination on the surface. Passivation is a chemical treatment applied to the surface of stainless steel to remove contaminants and assist the formation of a continuous chromium-oxide, passive film which protects the surface from corrosion. Our citric and nitric acid solutions can passivate and treat various stainless steel alloys. Care must be taken in selecting and using passivation treatments to ensure the selected treatment will target the contaminant. Passivation solutions can employ dangerous acids that can damage both the operator and the environment if not handled correctly. Our technicians are properly trained in the application and safety procedures involved in passivating parts. Passivated parts do not leave our facility without undergoing verification testing. We employ a number of verification tests (Copper Sulfate, Humidity, Salt Spray, etc.) to ensure your parts have been properly passivated. APPLICABLE SPECIFICATIONS: AMS-QQ-P-35 AMS 2700 ASTM A-380 ASTM A 967