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What is the difference between stainless steel square pipe and stainless steel square pipe
What is the difference between stainless steel square pipe and stainless steel square pipe

Stainless steel square pipe is generally a general term for stainless steel square pipe and acid-resistant steel. Stainless steel square pipe 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 chemical corrosion media such as acid, alkali, and salt. The stainless steel square tube came out at the beginning of this century and has a history of more than 90 years. The invention of the stainless steel square tube is a major achievement in the history of metallurgy in the world. The development of the stainless steel square tube has laid an important material and technological foundation for the development of modern industry and technological progress. There are many types of stainless steel square tube steels with different properties. It has gradually formed several categories in the development process. According to the organizational structure, it is divided into four major types: Martensitic stainless steel square tubes (including precipitation hardening stainless steel square tubes), ferritic stainless steel square tubes, austenitic stainless steel square tubes and austenitic plus ferritic duplex stainless steel square tubes Class; According to the main steel nitric acid-resistant stainless steel square pipe, sulfuric acid-resistant stainless steel square pipe, pitting-resistant stainless steel square pipe, stress corrosion-resistant stainless steel square pipe, high-strength stainless steel square pipe, etc.; according to the functional characteristics of steel, it is classified into low-temperature stainless steel Square tube, non-magnetic stainless steel square tube, free-cutting stainless steel square tube, superplastic stainless steel square tube, etc. At present, the commonly used classification method is to classify according to the structural characteristics of steel and the chemical composition of steel, as well as the combination of the two. Generally divided into martensitic stainless steel square tube, ferritic stainless steel square tube, austenitic stainless steel square tube, duplex stainless steel square tube and precipitation hardening stainless steel square tube, or divided into chromium stainless steel square tube and nickel stainless steel square tube Two categories.

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