Stainless steel is an iron-based alloy that can resist corrosion in air or certain corrosive media. Due to its excellent corrosion resistance, heat resistance, formability, weldability and other properties, it is widely used in construction, chemical industry, food, medical and other fields.The reason why stainless steel can resist corrosion is mainly due to the large amount of chromium in its composition. Chromium forms a dense chromium oxide film on the surface of the steel, which has a strong passivation effect and can effectively protect the steel matrix from corrosion.

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