Composition of stainless steel material

The essence of stainless steel is steel that is not easy to rust. It is a type of steel. The main components of steel are alloys of iron, carbon and a small amount of other elements. Chromium (Cr), nickel (Ni) and manganese are added during the smelting process. (Mn), silicon (Si), titanium (Ti), molybdenum (Mo) and other alloying elements, thereby improving the performance of the steel, making the steel corrosion-resistant, that is, it is not easy to rust.


Due to the different characteristics of the alloy elements added, and the different addition amounts of different varieties, there are different grades and different properties of stainless steel. In order to be distinguished, there are different grades of stainless steel, such as 201 stainless steel, 304 stainless steel, 316 stainless steel, etc. . So what are the characteristics of these alloy elements? Please continue to look down 1. Carbon (C): All steels have this element. It is the most important hardening element and enhances the hardness of the steel.


  2. Chromium (Cr): Improve the wear resistance and hardness of steel. Its performance is corrosion resistance. If the steel has 13% chromium content, it can be simply said that the steel is stainless steel.


  3. Nickel (Ni): Maintain strength, increase corrosion resistance and toughness.


  4. Manganese (Mn): Contributes to the formation of the texture structure of stainless steel, increases the firmness, strength, and wear resistance of stainless steel, and deoxidizes the interior of the steel during processing.


   5. Silicon (Si): Maintain and enhance the strength of steel during the production process.


6. Titanium (Ti): It mainly plays a role of quenching and tempering. For example, when the carbon content of stainless steel is high, carbides are easily formed during welding, which reduces the corrosion resistance of stainless steel. In this case, generally A small amount of titanium is added.


  7. Molybdenum (Mo): Plays the role of chloride corrosion resistance in stainless steel. This element is basically contained in high-grade stainless steel.


   Generally speaking, steel is an alloy of iron and carbon. The other components are just to make steel have different properties, improve the performance of steel, and make steel have corrosion resistance. This is what we often call stainless steel.

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