Citric vs. Nitric Passivation: Which Is Better for Stainless Steel?

Every stainless steel manufacturing operation eventually asks the same question: nitric or citric? The debate over citric vs nitric passivation is common among process engineers, quality managers, and procurement teams evaluating how to remove free iron contamination and restore corrosion resistance on finished parts. Both chemistries are proven, both meet industry standards, and both have