With the continuous acceleration of the pace of life and the gradual enhancement of people's awareness of environmental protection, stainless steel has become a new favorite in the home. How can we choose high-quality stainless steel with high efficiency? What types of stainless steel are there and how are they distinguished?
In the eyes of many consumers, 304 stainless steel and 201 stainless steel are almost indistinguishable, almost indistinguishable, but they are different after all, the differences are as follows:
1. The commonly used stainless steel plates are divided into two types: 201# and 304#. The actual composition is different. The quality of 304# is better, but the price is expensive, and the quality of 201# is worse. 304# is imported stainless steel plate, 201# is domestic stainless steel plate.
2. The composition of 201# is 17Cr-4.5Ni-6Mn-N, which is a Ni steel grade. It has magnetic properties after cold working and is used in railways and vehicles.
3. The composition of 304# is 18Cr-9Ni, which is the most widely used stainless steel and heat-resistant steel for food production equipment, Xitong chemical equipment, nuclear energy, etc.
4. 201# is high in manganese, the surface is very bright with dark light, and the high manganese content is easy to rust. 304# contains more chromium, the surface is matte and does not rust. The two can be compared together. The most important thing is that the corrosion resistance is different. The corrosion resistance of 201# is very poor, so the price is much cheaper. Since 201# contains low nickel, the price is lower than that of 304#, so the corrosion resistance is not as good as 304#. .
5. The difference between 201# and 304# is the problem of nickel. And the price of 304# is now more expensive, but 304# can at least guarantee that it will not rust during use. (Stainless steel potion can be used for experiments)
6. Stainless steel is not easy to rust because the formation of chromium-rich oxides on the surface of the steel body can protect the steel body. The 201# material belongs to high manganese stainless steel with higher hardness than 304#, high carbon and low nickel.
7. In the southern region, the rain is hot and humid, 201# will rust, and 304# is more practical; in the winter wind region, both are suitable. If the economic conditions are not very abundant, you can choose 201#. It is recommended to use 304# just in case.