How to solve the problem of stainless steel (manganese steel) rusting
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How to solve the problem of stainless steel (manganese steel) rusting
I know that for austenitic stainless steel, once the structure inside changes (such as heating, impact, etc.), it will start to rust. The simplest way to detect it is that austenitic stainless steel magnets cannot attract it, but denatured "austenitic stainless steel" magnets can. In addition, I don’t know what grade of manganese steel the landlord uses in what medium/environment, so everyone can discuss whether it is suitable.
Manganese steel will be made; adding nickel, chromium and titanium will make steel that is not easy to rust. Disadvantages of steel: 1. Easy to rust (...The reason why stainless steel does not rust is because it contains chromium and nickel in the steel. There is a thin protective film on the surface of the metal, which can block external corrosion, so it will not rust.
I don’t know if the poster means stainless steel with added manganese, that is, 200 series stainless steel. If stainless steel rusts, there are three possibilities.: 1. There is something wrong with the stainless steel material you chose. It is inferior stainless steel. This is especially common in 200 series stainless steel. ； 2. You chose the wrong stainless steel. For example, 200 series stainless steel is used in coastal areas. It is very normal to rust. ； 3. The use environment is very harsh, and stainless steel cannot achieve the effect of being stainless.