Stainless steel is used to resist atmospheric corrosion or can resist acid, alkali, salt and other chemical media corrosion of steel.
What are the commonly used stainless steel lawn edging?
1, specifications: commonly used stainless steel plate is divided into 201 and 304 two models, the actual composition is different, 304 quality is better, but the price is expensive, 201 is worse. 304 is imported stainless steel plate,201 is domestic stainless steel plate. 2, 201 is composed of 17Cr-4.5 NI-6MN-N, is a Ni steel, 301 steel replacement steel. Magnetic after cold working, used in railway vehicles. 3, 304 is composed of 18Cr-9Ni, is the most widely used stainless steel, heat-resistant steel. Used in food production equipment, Xitong chemical equipment, nuclear energy, etc. 4, 201 is high in manganese content, the surface is very bright with dark bright, high in manganese content easy to rust. 304 contains more chromium, the surface is matte, no rust. Put the two together and there's a comparison. The most important thing is that the corrosion resistance is different, the corrosion resistance of 201 is very poor, so the price will be much cheaper. And because 201 contains low nickel, so the price is lower than 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 more expensive now, but 304 can at least ensure that it will not rust during use. 6, stainless steel is not easy to rust because the formation of chromium-rich oxide on the surface of the steel body can protect the steel body,201 material belongs to high-manganese stainless steel with greater hardness than 304, high carbon and low nickel.7, the composition is different (mainly from carbon, manganese, nickel, etc.) Chromium containing several aspects to distinguish 201 and 304 stainless steel) steel number carbon (C) silicon (Si) manganese (Mn) phosphorus (P) sulfur (S) chromium (Cr) nickel (Ni) molybdenum rod (Mo) copper (Cu)AISI(304) ≤0.08 ≤1.00 ≤2.00 ≤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