How Can Stainless Steel Pipe Be Classified?

Types of stainless steel

Stainless steel is generally stainless steel and acid - resistant steel. Stainless steel refers to the atmosphere, steam and water and other weak medium corrosion of steel, and acid resistant steel refers to acid, alkali, salt and other chemical corrosive medium corrosion of steel.

Stainless steel since the beginning of this century, to now has more than 90 years of history. The invention of stainless steel is a great achievement in the history of world metallurgy. The development of stainless steel has laid an important material and technical foundation for the development of modern industry and scientific and technological progress. Stainless steel is a lot of steel, different performance, it has gradually formed several categories in the process of development. According to the structure, it is divided into Martensite stainless steel (including precipitation hardening stainless steel), ferritic stainless steel, austenitic stainless steel and austenitic and ferrite duplex stainless steel. According to the main chemical composition of steel or some characteristic elements in steel to be classified into chromium stainless steel, chromium nickel stainless steel, chromium nickel molybdenum stainless steel and low carbon stainless steel, high molybdenum stainless steel, high purity stainless steel, etc.; According to the performance characteristics and use of steel classification, divided into nitric acid resistance stainless steel, sulfuric acid resistance stainless steel, pitting corrosion resistance stainless steel, stress corrosion resistance stainless steel, high strength stainless steel, etc.; According to the functional characteristics of steel classification, divided into low temperature stainless steel, magnetic stainless steel, free cutting stainless steel, superplastic stainless steel and so on. At present, the commonly used classification method is based on the structure characteristics of steel, the chemical composition characteristics of steel and the combination of the two methods. Generally divided into martensitic stainless steel, ferritic stainless steel, austenitic stainless steel, duplex stainless steel and precipitation hardening stainless steel, etc., or divided into chromium stainless steel and nickel stainless steel two categories.

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