If you want to ask about the most commonly used stainless steel in the society, it is estimated that 201 and 304 are blurted out . Yes, basically these two grades of stainless steel are the most widely used. But as the most common stainless steel, will everyone know how to distinguish it?  

Of course, ordinary stainless steel manufacturers can be distinguished, but it is really difficult for other people to see with the naked eye. Now let the editor of Runtian Stainless Steel tell you the differences between them. 1. The difference in chemical composition.Stainless steel basically contains a very important element: nickel. This is also one of the big differences between 201 and 304. The nickel content of 201 is very low, almost none. And304 nickel content of more than 201 more, about 8 about a. Therefore, 201 stainless steel is generally more prone to rust than 304 .   

If the cost control is relatively large, 201 is usually used instead of 304 , after all, the cost is low. On the other hand, due to the low nickel content of 201 , it is usually used as201 alloy, such as adding manganese or nitrogen to make 201 more resistant to oxidation and increase corrosion resistance. Although the appearance of 201 is very similar to that of 304, the chemical properties are fixed and cannot be changed. This is also one of the differences.

2. The difference in physical properties Some people distinguish stainless steel by using a magnet to suck it up. It is not stainless steel that can suck up, but this method is very general and not comprehensive, and it is not rigorous. Generally, stainless steel has its physical properties. The hardness of 201 is higher, and it is harder than 304 . 304 has better high temperature resistance, and 304 has higher corrosion resistance and rust resistance than 201 . We often see that the 201 series steel grades are not used in the corrosive environment .

      3. The difference in market price. Judging from the current market price, the market price of 201 stainless steel is much lower than that of 304. According to the latest data, the price is more than a little bit lower, so the price is very different. If you tell you 304The price is the same as 201 , so the conclusion can be imagined.

4. Differences in application fields Although
      201 has poor performance, it can be sold after surface treatment. Because its price is relatively low, it is generally used in interior decoration, and its performance can generally meet simple decoration needs. 304 is used more in outdoor environments, and the outdoor environment is more complicated, which will produce more rust.

Junta was established at the beginning of stainless steel, set up a stainless steel tube products sector, which is committed to research and development production of high precision stainless steel tube, after nearly a few years of exploration and try and break through improvements in order to better focus on customers Precision stainless steel pipe fittings.