Stainless steel is generally a general term for stainless steel and acid-resistant steel. Stainless steel refers to steel that is resistant to corrosion by weak media such as atmosphere, steam and water, while acid-resistant steel refers to steel that is resistant to corrosion by chemically etched media such as acid, alkali and salt.
Stainless steel has been around since the beginning of this century and has a history of more than 90 years. The invention of stainless steel is a major achievement in the history of metallurgy in the world. The development of stainless steel has laid an important material and technical foundation for the development of modern industry and scientific and technological progress.
There are many types of stainless steel and different properties. It has gradually formed several major categories in the development process. According to the structure of the organization, it is divided into four categories: Markov 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 in steel or Some characteristic elements in steel are classified into chromium stainless steel, chrome-nickel stainless steel, chrome-nickel-molybdenum stainless steel, low-carbon stainless steel, high-molybdenum stainless steel, high-purity stainless steel, etc.; according to the performance characteristics and use classification of steel, it is divided into stainless steel resistant, Stainless steel, pitting resistant stainless steel, stress corrosion resistant stainless steel, high strength stainless steel, etc.; classified according to the functional characteristics of steel, divided into low temperature stainless steel, non-magnetic stainless steel, free cutting stainless steel, super plastic stainless steel and so on.
At present, the commonly used classification methods are classified according to the structural characteristics of steel and the chemical composition of steel and the combination of the two.
Stainless steel has been around since the beginning of this century and has a history of more than 90 years. The invention of stainless steel is a major achievement in the history of metallurgy in the world. The development of stainless steel has laid an important material and technical foundation for the development of modern industry and scientific and technological progress.
There are many types of stainless steel and different properties. It has gradually formed several major categories in the development process. According to the structure of the organization, it is divided into four categories: Markov 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 in steel or Some characteristic elements in steel are classified into chromium stainless steel, chrome-nickel stainless steel, chrome-nickel-molybdenum stainless steel, low-carbon stainless steel, high-molybdenum stainless steel, high-purity stainless steel, etc.; according to the performance characteristics and use classification of steel, it is divided into stainless steel resistant, Stainless steel, pitting resistant stainless steel, stress corrosion resistant stainless steel, high strength stainless steel, etc.; classified according to the functional characteristics of steel, divided into low temperature stainless steel, non-magnetic stainless steel, free cutting stainless steel, super plastic stainless steel and so on.
At present, the commonly used classification methods are classified according to the structural characteristics of steel and the chemical composition of steel and the combination of the two.
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