What is the corrosion situation of nitric acid 316 and 304?
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Please tell me about the corrosion of stainless steel by dilute nitric acid (less than 10%).
Stainless steel is the most widely used nitric acid-resistant material and has good corrosion resistance to all concentrations of nitric acid at room temperature. It is worth mentioning that the corrosion resistance of molybdenum-containing stainless steel (such as 316, 316L) to nitric acid is not only no better than that of ordinary stainless steel (such as 304, 321), but sometimes even worse. For high-temperature nitric acid, titanium and titanium alloy materials are usually used.
In this case, more than 304 is generally used. 316 not suitable