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The difference between the performance and use of 304, 201, and 316 splice jaws

2020-10-09 23:11:05
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Several materials of docking claw and the difference between different materials. Generally speaking, there are three kinds of materials: 304, 201 and 316. They mainly have the following differences.


The composition is different. The composition of 201 is 17Cr-4.5Ni-6Mn-N, which is an alternative to Ni-saving steel and 301 steel. After cold processing, it has magnetism and is used for railway vehicles. The composition of 304 is 18Cr-9Ni, which is a widely used stainless steel and heat-resistant steel. Used in food production equipment, Xitong chemical equipment, nuclear energy, etc. The difference between 201 and 304 stainless steel is mainly from carbon, manganese, nickel, and chromium. Steel grade carbon (C) silicon (Si) manganese (Mn) phosphorus (P) sulfur (S) chromium (Cr) nickel ( Ni) Molybdenum (Mo) Copper (Cu). The big difference between 316 and 304 is that 316 has 2-3 nickel more than 304.


 The specifications are different. Commonly used stainless steel plates are divided into two types, 201 and 304. In fact, the composition is different. 304 has better quality, but the price is more expensive, and 201 is worse. 304 is imported stainless steel plate, and 201 is domestic stainless steel plate. 201 is high in manganese, the surface is very bright with dark and bright, and high in manganese is easy to rust. 304 contains more chromium, the surface is matte and does not rust. The two are compared together. The important thing is that the corrosion resistance is different. The corrosion resistance of 201 is very poor, so the price is relatively cheaper. And because 201 contains low nickel, the price is lower than that of 304, so the corrosion resistance is not as good as 304. The price of 316L is almost twice that of 304. The mechanical properties of 304 are better than 316L. Because of the corrosion resistance and heat resistance of 304 and 316, they are widely used as stainless heat-resistant steel. The strength and hardness of 304 and 316 are similar. The difference between the two is that the corrosion resistance of 316 is much better than that of 304. The more critical point is that molybdenum metal is added to 316, which improves the heat resistance.


304 18cr-8ni-0.08c Good corrosion resistance, oxidation resistance and processability, strong oxygen acid resistance, can be punched, can be used to make containers, tableware, metal furniture, architectural decoration, and medical appliances 316 18cr-12ni-2.5 Mo is more common in seaside construction, ships, nuclear electrochemistry, and food equipment. It not only improves the corrosion resistance to chemical hydrochloric acid and the ocean, but also improves the corrosion resistance to salt water halogen solutions.


The above is the difference between the three materials of 304 docking claw, 316 docking claw, and 201 docking claw, as well as the difference between various models. After reading the above introduction, you can choose the applicable docking according to your needs. claw.


 


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