Reasons for rust of 201 stainless steel

1. Stainless steel is mixed with other attached metal objects, causing rust in humid air;

2. The surface of stainless steel contains corrosive substances such as acid and alkali which cause rust;

3. The surface of stainless steel is scratched and rusted.

201 stainless steel has low nickel content and weak corrosion resistance, so it is easy to rust in humid and high temperature environments or environments with high air pH. It has excellent corrosion resistance in low temperature and dry areas.