Simple classification of stainless steel 300 series and its main uses
Stainless steel can be simply divided into three categories: 200 series, 300 series and 400 series, of which 300 series is the most commonly used, 200 series and 400 series are, to some extent, substitutes for 300 series, and strictly speaking, 400 series is not called stainless steel, called stainless steel, because it does not contain nickel. The 200 series and 300 series contain nickel.