Chemical composition of 304 stainless steel plate: Carbon C: ≤0.08 Silicon Si: ≤1.00 Chromium Cr: 18.00-20.00 Manganese Mn: ≤2.00 Nickel Ni: 8.00-11.00 Phosphorus P: ≤0.045 Sulfur S: ≤0.030.
201 stainless steel chemical composition of carbon (C) : 0.15, or less silicon (Si) : 0.10 or less, manganese (Mn) : 5.5 ~ 7.50, chromium (Cr) : 16.0 ~ 18.0, nitrogen (N) : 0.25, or less phosphorus (P) : 0.060, or less sulfur (S) : 0.030 or less, nickel (Ni) : 3.5-5.5.
1, the chemical formula of 201 is 1Cr17Mn6Ni5, the chemical formula of 304 is 06Cr19Ni10; The main difference between them is the nickel chromium element, 304 is 19 chromium and 10 nickel, while 201 is 17 chromium and 5 nickel. 2, 201 stainless steel contains manganese, but 304 does not; In terms of color, 201 stainless steel will be darker than 304 because of manganese, and 304 will be whiter, but this is not easily distinguishable by the naked eye. 3, because the nickel content is different, the corrosion resistance of 201 is far less than that of 304; Acid and alkali resistance 201 is not as good as 304; Because the carbon content of 201 is higher than 304, so 201 is harder and more brittle than 304, 304 toughness is better, with a hard knife on the surface of 201 will generally have obvious scratches, 304 scratches will not be obvious 4, because 201 contains manganese, a long time in the humid and salty air will rust, and 304 will not rust;
