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What types of corrosion can 18/10L stainless steel rated for nitric acid resist?

2026-07-15View Original

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The applications for 18/10L grade nitric acid stainless steel (i.e., 00Cr18Ni10, low-carbon austenitic stainless steel) are well defined; the main media it can resist include nitric acid. It exhibits excellent corrosion resistance to nitric acid at all concentrations below 25°C, as well as to boiling dilute nitric acid with a concentration of up to 60%. It is the most widely used corrosion-resistant material in the nitric acid industry, and its low-carbon composition helps to prevent the intergranular corrosion that often occurs in conventional stainless steels when exposed to nitric acid. It can withstand weakly corrosive environments such as the atmosphere, fresh water, and steam, as well as resist the daily erosion caused by water, weak acids and bases found in foods, and common salts. Certain organic acid media also possess stable corrosion resistance against most organic acid solutions such as acetic acid at room temperature. It cannot withstand media with high concentrations of chloride ions (such as seawater); in such cases, molybdenum-containing stainless steels such as 316L should be used as a substitute.

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