What is the best way to distinguish the material of the stainless steel wire mesh screen?

Nowadays, the market for stainless steel wire mesh screens is very large, and customers want to buy 304 or 316. But in many cases, many customers actually purchased 201 raw materials instead of 304 stainless steel materials. In general, 201 and 304 are difficult to distinguish.

From the chemical side:

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

From the color point of view:

Since 201 stainless steel contains manganese, the color will be darker than 304, and 304 will be whiter.

From acid and alkali resistance:

201 Because the content of nickel is relatively small, the acid and alkali resistance is not as good as 304.

From the perspective of toughness:

The toughness of 304 is better, 201 is harder than 304, and the experiment is done with a hard knife. After the surface of 201 is scratched, there will be obvious scratches, and the surface of 304 will not have obvious scratches.

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