The chemical formula for 201 stainless steel is 1Cr17Mn6Ni5, while the chemical formula for 304 stainless steel is 0Cr19Ni10. The main difference lies in their nickel and chromium content. 201 contains 17 chromium, 5 chromium, and 6 manganese, while 304 contains 19 chromium and 10 nickel. This results in differences in color, corrosion resistance, acid and alkali resistance, and toughness. Next, the stainless steel screen manufacturer will introduce methods for distinguishing the materials of stainless steel screens:
Methods for distinguishing the materials of stainless steel screens are as follows:
1. In terms of toughness, 304 is tougher than 201. Using a hard scratching tool, a scratch on the surface of 201 will leave a very obvious mark, while a scratch on the surface of 304 will not.
2. In terms of acid and alkali resistance, 201, due to its lower nickel content, does not have the same acid and alkali resistance as 304.
3. In terms of corrosion resistance, 201 stainless steel contains manganese, which will cause it to rust over time in humid or high-salt environments, while 304 stainless steel does not contain manganese and therefore will not rust.
4. In terms of color, 201 stainless steel, due to its manganese content, is darker than 304, which is brighter and whiter.
These are four ways to distinguish the material of stainless steel screens. Have you all learned them? When purchasing stainless steel screens, be sure to keep your eyes open and buy genuine stainless steel screens.
Stainless steel screens are widely used for screening, filtration, and protective decoration, and are applicable to industries such as mining, petroleum, chemical, food, pharmaceutical, machinery manufacturing, construction decoration, electronics, and aerospace.
