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Seamless steel pipe is perforated with round steel

Views: 0     Author: Site Editor     Publish Time: 2021-07-09      Origin: Site

Seamless steel pipe is perforated with round steel, the surface of the steel pipe without weld is called seamless steel pipe.  According to the production method, seamless steel pipe can be divided into hot rolled seamless steel pipe, cold rolled seamless steel pipe, cold drawn seamless steel pipe, extrusion seamless steel pipe and pipe jacking.  According to the shape of the section, seamless steel pipe is divided into two kinds: round and irregular.  There are square, oval, triangular, hexagonal, melon, star and finned tubes.  The large diameter is 900mm, the small diameter is 4mm.  There are thick-walled seamless steel tubes and thin-walled seamless steel tubes according to their use.  Seamless steel pipe is mainly used for petroleum geological drilling pipe, petrochemical cracking pipe, boiler pipe, shaft  spiral welded steel pipe factory-GKSTEELPIPE

The use of seamless steel tube :

Seamless steel pipe is perforated with round steel, the surface of the steel pipe without weld is called seamless steel pipe.  According to the production method, seamless steel pipe can be divided into hot rolled seamless steel pipe, cold rolled seamless steel pipe, cold drawn seamless steel pipe, extrusion seamless steel pipe and pipe jacking.  According to the shape of the section, seamless steel pipe is divided into two kinds: round and irregular.  There are square, oval, triangular, hexagonal, melon, star and finned tubes.  The large diameter is 900mm, the small diameter is 4mm.  There are thick-walled seamless steel tubes and thin-walled seamless steel tubes according to their use.  Seamless steel pipes are mainly used for drilling pipes for petroleum geology, cracking pipes for petrochemical industry, boiler pipes, bearing pipes and high-precision structural steel pipes for automobiles, tractors and aviation.  

Seamless steel pipe  :

Seamless steel tubes are widely used.  

1. General seamless steel pipe is made of ordinary carbon structure steel, low alloy structure steel or alloy structure steel rolling, production is large, mainly used as the pipeline or structure of fluid transport.  

Seamless steel pipe uses: Seamless steel pipe is a kind of economic section of steel, occupies an important position in the national economy, widely used in petroleum, chemical, boiler, power station, shipbuilding, machinery manufacturing, automotive, aviation, aerospace, energy, geology, construction, military and other industries.  

Seamless steel pipe classification:  

(1) according to the shape of the section: circular section pipe and special-shaped section pipe  

(2) according to the material: carbon steel pipe, alloy steel pipe, stainless steel pipe, composite pipe  

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

(4) according to the production mode: hot rolling (extrusion, top, expansion) pipe and cold rolling (pull) pipe  

According to the use, it is divided into boiler pipe, oil well pipe, pipeline pipe, structural pipe and fertilizer pipe   

Seamless steel tube production technology  :

(1) Main production process of hot rolled seamless steel pipe (main inspection process):  

Preparation and inspection of tube billet → heating of tube billet → perforation → rolling tube → reheating → sizing (reducing diameter)→ heat treatment → straightening of finished tube → finishing → inspection (non-destructive, physical and chemical, bench inspection)→ warehousing  

② The main production process of cold rolling (drawing) seamless steel tube  

Preparation of blank → pickling and lubrication → cold rolling (drawing)→ heat treatment → straightening → finishing → inspection.  

2. Special seamless pipes include boiler, chemical and electric seamless pipes, seamless steel pipes for geology and seamless pipes for petroleum.  

Seamless steel tubes have hollow parts and are used in large quantities for conveying fluids, such as oil, natural gas, natural gas, water and certain solid materials.  Compared with solid steels such as round steels, steel tubes are economical cross-section steels with the same bending and torsional strength because they are lighter in weight.  

It is widely used in the manufacture of structural and mechanical parts, such as oil drill pipe, automobile drive shaft, bicycle frame and steel scaffolding for construction.  Steel tubes are used to manufacture annular parts, which can improve material utilization, simplify the manufacturing process and save materials and processing.  Steel pipe has been widely used in manufacturing during office hours.  


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