Thick Wall Steel Tubing

Thick wall Seamless steel tubing Thick walled seamless steel tubing production process can be divided into cold drawing, cold rolling, hot rolling, thermal expansion of four basic ways, steel pipe material for #, $number, $number, $number known as common steel pipe, according to the use of...
Product description

Thick Wall Seamless Steel Tubing

Thick walled seamless steel tubing production process can be divided into cold drawing, cold rolling, hot rolling, thermal expansion of four basic ways, steel pipe material for 10#、20#、35#、45# known as common steel pipe, according to the use of seamless steel tubings; seamless steel tubings for conveying; ; high-pressure seamless steel tubings for fertilizer equipment; seamless steel tubings for exploration of geological bricks; seamless steel tubings for the exploration of petroleum bricks; seamless steel tubings for petroleum cracking; cold drawn cold-rolled precision seamless steel tubings; Seamless steel tubing expression method for the outside diameter, wall thickness, thick wall seamless steel tubings are mainly used for machining, coal, hydraulic steel, and many other uses.

 

Classification

Hot-rolled thick-walled seamless steel tubings, cold-rolled thick-walled seamless steel tubings, cold-drawn thick-walled seamless steel tubings, extruded thick-walled seamless steel pipe, top tubing

Structural stainless steel Seamless pipe is used for general structure and mechanical structure of seamless steel tubings, widely used in chemical, petroleum, textile, medical, food, machinery and other industries corrosion-resistant piping and structural parts and components of stainless steel made of hot-rolled (extrusion, expansion) and cold (rolling) seamless steel tubing.

Fluid transport stainless Steel seamless pipe is used for conveying water, oil, gas and other fluids of the general seamless steel tubing, is usually made of stainless steel hot-rolled (extrusion, expansion) and cold (rolling) seamless steel tubing.


Special-shaped seamless steel tubing is in addition to the tubing other than the cross-section of the shape of seamless steel pipe. According to the different size of steel pipe cross-section can be divided into equal wall-shaped seamless steel tubing (code-named D), unequal wall-shaped seamless steel tubing (code-named BD), variable diameter seamless steel pipe (code-named BJ). Profiled seamless steel tubing is widely used in various structural parts, tools and mechanical parts. Compared with the round tubing, the special-shaped tubing generally has a larger inertia and cross-section modulus, has a larger bending and torsional ability, can greatly reduce the structural weight, saving steel.


Production Process Editing

General seamless steel tubing production process can be divided into cold drawn and hot-rolled two kinds, cold-rolled seamless steel pipe production process is generally more complex than hot rolling, the first three rolls of tubing billet, after extrusion to carry out a sizing test, if the surface does not respond to the crack after the tubing cutting machine to cut, cut into a length of about one meter of the billet. Then enter the annealing process, annealing to use acidic liquid for pickling, pickling should pay attention to the surface whether there is a large number of blistering, if there is a large number of bubbles to show that the quality of the steel pipe does not reach the standard of response. The appearance of cold-rolled seamless steel pipe to be shorter than hot-rolled seamless steel tubing, cold rolled seamless steel tubing thickness is generally smaller than hot-rolled seamless steel tubing, but the surface looks more bright than the thick wall seamless steel tubing, the surface is not too rough, the caliber also does not have too many burrs.


Hot-rolled seamless steel tubing delivery status is generally hot-rolled after heat treatment delivery. Hot-rolled seamless steel pipe after the quality of the staff after the strict manual selection, after the quality of the surface coating oil, followed by a number of cold drawing experiments, hot-rolled after treatment to carry out a perforation of the experiment, if the perforation expansion is too large will be straightening rectification. After straightening, the transmission device is transmitted to the flaw detection machine to carry out the flaw detection experiment, finally pastes the label, carries on the specification arrangement after placing to the warehouse.


Specifications

Specifications

Specifications

Specifications

Specifications

Specifications

Specifications

406*16

457*32

508*80

530*22

660*80

820*55

406*17

457*35

508*90

530*25

660*90

820*60

406*18

457*40

508*100

530*28

660*100

820*70

406*19

457*45

530*16

610*30

660*150

820*80

406*20

457*50

530*17

610*32

710*20

820*90

406*22

457*55

530*18

610*35

710*22

820*100

406*25

457*60

530*19

610*40

710*25

820*150

406*28

457*65

530*20

610*45

710*28

820*200

406*30

457*70

530*22

610*50

710*30

864*40

406*32

457*80

530*25

610*55

710*32

864*55

406*35

457*90

530*28

610*60

710*35

864*60

406*40

457*100

530*30

610*65

710*40

864*70

406*45

480*16

530*32

610*70

710*45

864*80

406*50

480*17

530*35

610*80

710*50

864*90

406*55

480*18

530*40

610*90

710*55

864*100

406*60

480*19

530*45

610*100

710*60

864*150

406*65

480*20

530*50

610*150

710*65

864*200

406*70

480*22

530*55

630*18

710*70

900*60

406*80

480*25

530*60

630*19

710*80

900*70

406*90

480*28

530*65

630*20

710*90

900*80

426*16

480*30

530*70

630*22

710*100

900*90

426*17

480*32

530*80

630*25

710*150

900*100

426*18

480*35

530*90

630*28

720*25

900*150

426*19

480*40

530*100

630*30

720*28

900*200

426*20

480*50

559*16

630*32

720*30

950*60

426*22

480*55

559*17

630*35

720*32

950*70

426*25

480*60

559*18

630*40

720*35

950*80

426*28

480*65

559*19

630*50

720*40

950*90

426*30

480*70

559*20

630*55

720*50

950*100

426*32

480*80

559*22

630*60

720*55

950*150

426*35

480*90

559*25

630*65

720*60

950*200

426*40

480*100

559*28

630*70

720*65

1000*80

426*45

508*16

559*30

630*80

720*70

1000*90

426*50

508*17

559*32

630*90

720*80

1000*100

426*55

508*18

559*35

630*100

720*90

1000*150

426*60

508*19

559*40

630*150

720*100

1000*200

426*70

508*20

559*50

660*20

720*150

1050*80

426*80

508*22

559*55

660*22

 

8*40

 

1050*90

426*90

508*25

559*60

660*25

 

8*45

 

1050*100

426*100

508*28

559*65

660*28

 

8*50

 

1050*150

457*16

508*30

559*70

660*30

 

8*55

 

1050*200

457*17

508*32

559*80

660*32

 

8*60

 

1100*80

457*18

508*35

559*90

660*35

 

8*70

 

1100*90

457*19

508*40

559*100

660*40

 

8*80

 

1100*100

457*20

508*50

610*16

660*50

 

8*90

 

1100*150

457*22

508*55

610*17

660*55

 

8*100

 

1100*200

457*25

508*60

610*18

660*60

 

8*150

 

1200*80

457*28

508*65

610*19

660*65

 

8*200

 

1200*90

457*30

508*70

610*20

660*70

820*50

1200*200

 

 


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