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Identify the material of stainless steel wire mesh by color

May. 16, 2024

When making stainless steel wire mesh, the material you should choose is SUS304. However, many unscrupulous merchants, in order to reduce costs, choose 201 stainless steel instead of 304 stainless steel. It is difficult to distinguish 201 and 304 from the naked eye for ordinary people. In order to prevent more unscrupulous manufacturers from continuing to conceal our oscillating wire users and disrupt the market order, this will affect user use and production.

The chemical formula of 201 is 1Cr17Mn6Ni5, and the chemical formula of 304 is 06Cr19Ni10; the main difference between them is the nickel-chromium element, 201 is 17 chromium, 5 chromium-nickel elements and also contains 6 manganese elements, and 304 is 19 chromium elements and 10 nickel elements; Therefore, they have many differences in color, corrosion resistance, acid and alkali resistance, tolerance, etc.

From the color point of view, because 201 stainless steel contains manganese, the color will be darker than 304, while 304 will be whiter and brighter. In terms of corrosion resistance, because 201 contains manganese, it will rust in a humid or salty environment for a long time, while 304 will not rust because it does not contain manganese.

In terms of acid and alkali resistance, 201 has a relatively small nickel content, so its acid and alkali resistance is not as good as 304. In terms of durability, 304 has better resistance. 201 is harder and brittle than 304. Use a strong scratcher to test. There will be obvious scratches on the surface of 201, but there will be no obvious scratches on the surface of 304. mark.