1. Specifications: Commonly used stainless steel plates are divided into two models: 201 and 304. In fact, the components are different. The 304 quality is better, but the price is expensive, and the 201 is worse. 304 is imported stainless steel plate, 201 is domestic stainless steel plate.
2. The 201 group was forming a 17Cr-4.5NI-6MN-N, which is an alternative steel of NI steel and 301 steel. After cold processing, it is magnetic and used in railway vehicles.
3, 304 groups are into 18Cr-9NI, which are the most widely used stainless steel and heat-resistant steel. For food production equipment, Xitong chemical equipment, nuclear energy, etc.
4.201 is a high manganese -containing, bright surface with dark and bright, and manganese -containing high is easy to rust. 304 chromium contains more, appears matte on the surface, and does not rust. The two are 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. Because of the low nickel content in 201, the price is lower than that of 304, so the corrosion resistance is not as good as 304.
5. The difference between 2011 and 304 is the problem of nickel -containing. And the price of 304 is now more expensive, but at least 304 can ensure that it will not rust during use. (Experiments can be used with stainless steel potion)
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. 201 ingredients are high -manganese stainless steel than 304 hardness, high carbon and low nickel.
7. Different ingredients (mainly from carbon -containing, manganese -containing, nickel -containing, and chromium containing chromium to distinguish 201 and 304 stainless steel)
Steel carbon (C) silicon (Si) manganese (mn) phosphorus (P) sulfur (S) chromium (CR) nickel (NI) molybdenum (MO) copper (CU)
AISI (304) ≤0.08 ≤1.00 ≤ 0.045 ≤0.03 18-20 8-10
AISI (201) ≤ 0.15 ≤1.00 5.5-7.5 ≤0.05 ≤0.03 16-18 3.5-5.5
