Wuxi Guoyin Metal Material Co., Ltd.

What is the difference between 304 stainless steel and 201 stainless steel?

201 stainless steel and 304 stainless steel are two very common and widely used types of stainless steel in the stainless steel family. What is the difference between them?

1. Different ingredients

The primary reason for the difference between the two is that the compositions of 201 stainless steel and 304 stainless steel are different. Although both are chromium-nickel alloys, the specific proportions are different. The chromium content in 201 stainless steel is about 15%, while the chromium content in 304 stainless steel is 18%. Similarly, the nickel content in 201 stainless steel is 5%. , while 304 stainless steel contains more, accounting for about 9%. Therefore, this also causes the appearance of the two to be different in color. The surface of 201 stainless steel is brighter, while the surface of 304 stainless steel has a matte effect.

2. Different performance

We all know that 304 stainless steel has good corrosion resistance and is not prone to rust, but in comparison, 304 stainless steel is softer. The hardness of 201 stainless steel will be greater, but it will not be as good as 304 stainless steel in terms of anti-corrosion performance. Although the surface is brighter, it is more likely to rust during use.

3. Different uses

It is precisely because of their different compositions and properties that their specific uses are also different. The corrosion resistance of 201 stainless steel is not high, but it has higher density and no pinholes inside. Therefore, it is generally suitable for dry environments, such as decoration fields, industrial products, etc., and can meet the needs well. 304 stainless steel has better corrosion resistance, so it can be used in industry, home decoration, medical and other industries. It is also very suitable for coastal or humid areas.

4. Different prices

Finally, there is a slight difference in price between the two. Under normal conditions, the price of 304 stainless steel is higher than that of 201 stainless steel.

As common stainless steels, 201 stainless steel and 304 stainless steel each have more prominent characteristics, so we can make better choices based on actual uses and needs.