Stainless Steel Quality Standards: Chemical Composition

The grade and chemical composition (smelting analysis) of steel shall comply with relevant regulations. (View: 2018 latest national standards for stainless steel material composition)
The allowable deviation of the finished chemical composition of the steel plate and steel strip shall comply with the provisions of GB/T222.
Stainless steel pitting equivalent index PREN=Cr%+3.3Mo%+16N%.