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Seamless Steel Pipe Production Materials And Uses

Date:2019-02-15    keywords:seamless steel pipe, casing pipes
Steel pipes without joints on the outer surface are made of a single piece of metal and are called seamless steel pipes. According to the manufacturing method, the seamless pipe is divided into a hot rolled pipe, a cold rolled pipe, a cold drawn pipe, an extruded pipe, a top pipe, and the like. According to the shape of the section, seamless steel pipes are divided into two types: circular and special shapes. 

Shaped tubes have a variety of complex shapes such as squares, ovals, triangles, hexagons, melons, stars and wing tubes. The maximum diameter is 650mm and the minimum diameter is 0.3mm. Depending on the application, there are thick walled tubes and thin walled tubes. Seamless steel pipes are mainly used in petroleum geological drilling pipes, petrochemical cracking pipes, boiler pipes, casing pipes, automobiles, tractors, and high-precision structural steel pipes for aviation.

Classification: Seamless steel pipes along the perimeter of their cross section. According to different production methods, it is divided into hot rolled pipe, cold rolled pipe, cold drawn pipe, extruded pipe, top pipe, etc., each with its own process regulations. The material is ordinary high-quality carbon structural steel (Q215-A Q275-A and 1050 steel) low alloy steel (09MnV16Mn, etc.) alloy steel, stainless acid-resistant steel. According to the purpose, it can be divided into water, gas pipeline and structural parts, general use of mechanical parts, boiler, geological exploration, bearing, acid resistance and so on.

Uses: Seamless steel pipes are widely used. The universal seamless steel pipe is rolled from ordinary carbon structural steel, low alloy structural steel or alloy structural steel, and has the largest output. It is mainly used as a pipe or structural component for conveying fluid. There are three types of supplies depending on the application: a based on chemical composition and mechanical properties; b depending on mechanical properties; c is provided by hydraulic testing. Steel pipes supplied in accordance with the ab grade are also subjected to a hydrostatic test if they are used to accept liquid pressure. Special seamless pipes include boiler seamless pipes, chemical power supplies, geological seamless steel pipes and oil seamless pipes.

Seamless steel tubes have a hollow portion and are used in large quantities as pipes for transporting fluids, such as pipes for transporting petroleum, natural gas, natural gas, water, and certain solid materials. Compared with solid steel such as round steel, steel pipes have the same bending and torsional strength and are light in weight and economical.

It is also widely used in the manufacture of structural and mechanical components such as oil drill pipe, automotive driveshafts, bicycle frames and steel scaffolding used in construction. It is used to make ring-shaped parts with steel pipes that increase data utilization, simplify manufacturing and save data. The processing time has been widely used in the manufacture of steel pipes.

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