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201 stainless steel and 304 stainless steel

304-stainless-steel-sheets-2B-suface   201-stainless-steel-sheets-hot-roll

Ordinary life, the application of stainless steel is very extensive. Commonly used stainless steel sheet is divided into 201 and 304 two models. The following Mogo metal to tell you how to distinguish between stainless steel 201 and 304 stainless steel.

1, composition: stainless steel 201 chemical formula is 1Cr17Mn6Ni5,304 chemical formula is 06Cr19Ni10; the main difference between them is the nickel-chromium element, stainless steel 304 is 19 chromium 10 nickel, and stainless steel 201 is 17 chromium 5 nickel.
2, anti-corrosion and acid resistance: the content of nickel, stainless steel 201 corrosion resistance is far less than the good 304 stainless steel; acid and alkali properties of stainless steel 201 stainless steel 304 is not good.

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3, color: stainless steel 201 stainless steel containing manganese, but not 304 stainless steel. The stainless steel 201 is a manganese-containing high surface bright with dark light. 304 stainless steel containing more chromium, the surface showed matte.

4, compression capacity: Because the stainless steel 201 carbon content higher than the stainless steel 304, stainless steel 201 than stainless steel 304 to be hard and brittle, 304 stainless steel toughness better, with a hard knife in the surface of stainless steel 201 strokes generally have a clear The scratches on the stainless steel 304 will not be noticeable.

5, moisture resistance: because the stainless steel 201 contains manganese, a long time in the wet and high salt air will rust, and 304 will not rust; but also many people say that stainless steel 304 rust, it may not be stainless steel 304. The difference between stainless steel 201 and stainless steel 304 is mainly to see the problem of nickel, and stainless steel 304 prices are now more expensive, but at least the words of stainless steel 304 can be used to ensure that the process will not rust. (Available medicine to do experiments)

So, usually we identify what is a simple stainless steel method? There is a common way is to use suction iron suction, can suck up is stainless steel iron, and not on the suction is stainless steel, which does not help us to distinguish between 201 stainless steel or 304 stainless steel; only from a long-term point of view, Metal recommended outdoor decoration construction as much as possible using 304 stainless steel, coastal decoration construction using 304 or 316 stainless steel.


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