How to distinguish 304 stainless steel plate from 201 stainless steel:

1. The difference in fatigue resistance: 201 stainless steel plate has higher strength, but its toughness is not as good as 304 stainless steel plate, so the fatigue resistance of 304 stainless steel plate is slightly higher.

2. The difference in overall quality: The overall quality of 304 stainless steel plate is better, and the price is slightly higher than that of 201 stainless steel plate. The quality of 201 stainless steel plate is slightly worse. 304 stainless steel plate is made of imported steel, while 201 is made of domestic steel.

3. The difference between formed steel: 201 stainless steel plate is mainly composed of 17Cr-4.5Ni-6Mn-N, which is a kind of Ni-shaped steel and an alternative steel type of 301 steel. After a certain period of cold working, it will acquire magnetism and be used in railway vehicles. 304 stainless steel plate is processed into 18Cr-9Ni, which is the most widely used stainless steel plate and heat-resistant steel plate in the market. Generally used in food processing equipment, various chemical production equipment, nuclear power industry, etc.

4. The difference between the content of manganese and nickel: 201 stainless steel plate contains high manganese, the surface of the steel plate is bright and dull, but if the manganese content is high, it is easy to rust. The 304 stainless steel plate has a higher chromium content, and the surface of the general steel plate will appear matte, which is not easy to rust. The most important aspect of the two steel plates is the difference in corrosion resistance. The overall corrosion resistance of 201 is low and easy to be corroded, so the price will be much cheaper. Moreover, the nickel content of 201 is low, and the price is lower than that of 304 stainless steel plate as a whole. The biggest difference between 201 stainless steel plate and 304 stainless steel plate is the problem of nickel element. However, the price of 304 is slightly more expensive, and 304 stainless steel plate can at least keep it from rusting in any use.