Stainless Steel types

Choosing stainless steel is a bit of a jungle. If the most important property is a good resistance against pitting corrosion and crevice corrosion, the answer is to pick a steel grade with lots of chromium (Cr) and molybdenum (Mo), while resistance against stress corrosion cracking often is a question of the nickel content. Nickel is also beneficial when fighting general corrosion, and if you need to fight sensitization and intergranular corrosion, a low carbon content is essential. As such, regardless what is the purpose of the steel, it is necessary to know what’s actually in the steel.