Just like chrome-nickel steels, they are mainly resistant to electrochemical corrosion in the environment of inorganic and organic acids, nitrogen compounds and solutions of salts and aggressive foodstuffs.
These are constantly for which, for savings purposes, nickel manganese or nitrogen was partially replaced by nitrogen e.g. 1H17N4G9. They also have an austenic structure, but their corrosion resistance is slightly worse than nickel chrome steels. In environments such as lactic, acetic and other solutions found in fruit juices, they show good immunity. They are widely used in the dairy industry.