Application of seamless steel pipe, classification of seamless steel pipe, seamless steel pipe

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Application and classification of seamless steel pipe

Application: seamless steel pipe is a kind of economic section steel, which plays a very important role in the national economy. It is widely used in petroleum, chemical industry, boiler, power station, ship, machinery manufacturing, automobile, aviation, aerospace, energy, geology, construction, military industry and other departments.

Classification:

① According to the section shape, it is divided into circular section pipe and special-shaped section pipe

② By material: carbon steel pipe, alloy steel pipe, stainless steel pipe and composite pipe

③ According to the connection mode, it is divided into threaded connection pipe and welded pipe

④ According to the production mode: hot rolling (extrusion, jacking and expansion) pipe and cold rolling (drawing) pipe

⑤ By use: boiler pipe, oil well pipe, pipeline pipe, structural pipe, fertilizer pipe