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  • Cangzhou Weiheng Pipe Industry Co.,Ltd

  •  [Hebei,China]
  • Business Type:Distributor/Wholesaler , Manufacturer , Trade Company
  • Main Mark: Africa , Americas , Caribbean , East Europe , Europe , Middle East , North Europe , West Europe , Worldwide
  • Exporter:91% - 100%
  • Certs:CE, ISO9001
Cangzhou Weiheng Pipe Industry Co.,Ltd
Home > News > Classification of steel pipe : different kinds of steel tube

Classification of steel pipe : different kinds of steel tube

According to the production method:
Pipe according to production methods can be divided into two categories: Seamless Steel Pipe and pipe joints, pipe joints referred to as straight pipe joints.
1. seamless Steel Pipe according to production methods can be divided into: hot-rolled seamless pipe, cold drawn pipe, precision steel tubes, thermal expansion tubes, cold spinning tube and squeeze tubes.
Seamless steel pipe with high-quality carbon steel or alloy steel, hot-rolled, cold-rolled (pull) of the points.
2. welded steel pipe because of different welding process is divided into stove pipe, welded (ERW) pipes and automatic arc welded pipe, welding its different forms is divided into two Longitudinal and spiral welded pipe, its end shape is divided circular pipe and shaped (square, flat, etc.) pipe.

Welded steel pipe is rolled into a tube-shaped steel sheet spiral seam to seam or welded, in the manufacturing method, is divided into low pressure liquid delivery welded steel pipe, spiral seam welded steel pipe, straight welded pipe, welded pipe. Seamless steel tubes for various industries liquid pressure pipelines and gas pipelines. Welded pipes can be used for water pipes, gas pipes, heating pipes, electrical pipes.

According to the material:
Pipe by pipe material (ie steel) can be divided into: carbon pipe and alloy pipe, stainless steel tubes.
Carbon tube can be divided into ordinary carbon steel and quality carbon structural tube.
Alloy tube can be divided into: low-alloy tube, alloy structure tube, high alloy pipe, high-strength pipe. Bearing tube, heat-resistant acid stainless steel tube, precision alloy (such as Kovar) pipe and high-temperature alloy tubes.
Press connection classification
Pipe by pipe end connection can be divided into: light pipe (pipe end without thread) and threading pipe (pipe end with thread).
Car wire tube is divided into: ordinary cars wire pipe and threading pipe end upsetting.
Thick threading pipe can be divided into: external upset (with external thread), internal upset (with internal thread) and the inner and outer thickening (with external thread), etc. threading pipe.
If you press threading pipe thread types can be divided into: ordinary cylindrical or conical thread and special thread etc. threading pipe.
In addition, according to user needs, threading pipe is generally equipped with fittings delivery.
According to the plated coating characteristics
A surface coated steel plating characteristics can be divided into: clarinet (not plated coating) and plated coating tube.
Coating possession galvanized pipe, aluminum pipe, chrome pipes, tubes and other alloy layer infiltration was steel.
Coated pipe outer coating tube, pipe coating, pipe coating inside and outside. Usually with a plastic coating, epoxy, epoxy coal tar and various type of anti-corrosion coating of glass material. Galvanized pipe and tube is divided into KBG, JDG tube, threaded pipe, etc.
According to the application:
1. Line tube. Such as: water, gas pipes, steam pipes seamless pipe, oil pipeline, oil and gas line pipe. Agricultural irrigation faucet with a pipe and sprinkler pipe.
2. Thermal Equipment tube. Such as the general use of boiling water tube boilers, superheated steam pipes, superheater locomotive boiler tubes, opium pipe, small pipe, brick arch pipe and high-temperature high-pressure boiler tubes.
3. Mechanical industrial pipe. Such as aviation structural tube (tube, oval tube, flat oval tube), automobile axle tube, axle tubes, structural tubes for tractor, tractor oil cooler tube, farm with a square tube and rectangular tube, pipe and transformer bearings tubes.
The petroleum geological drilling pipe. Such as: oil drilling pipe, drill pipe (Kelly and hexagonal drill), drill collar, oil tubing, casing and various fittings, geological drilling pipe (core pipe, casing, active drill pipe, drill collar Press hoop and pin joints, etc.).
5. Chemical industrial pipe. Such as: petroleum cracking tubes, chemical equipment and piping tube heat exchangers, acid-resistant stainless pipe, fertilizer use high-pressure pipe and transporting chemical medium pipe.
6. Other departments tube. Such as: container tube (high pressure gas cylinders with pipes and general container tube), instrumentation tube, watch shell pipe, hypodermic needles and tubes and other medical devices.
According to the cross-sectional shape:
Steel grades and different specifications of steel products is extremely diverse, its performance varies. All of these changes should be as user requirements or conditions of work and distinction. Typically, steel products according sectional shape, production method, pipe materials, connection methods, plated coating characteristics and intended use classification.
Pipe according to a cross-sectional shape can be divided into: circular pipe and shaped pipe.
Profiled steel refers to a variety of non-circular cross-section of the pipe. The major ones are: a square tube, rectangular tube, oval tube, flat oval tubes, half tubes, hexagonal tubes, hexagonal tube, scalene hexagonal tubes, pipes equilateral triangle, pentagon Plum, octagonal tube, convex shaped tube, double convex tube. Double concave tube, more concave tube, oval-shaped tube, flat tube, diamond-shaped tube, star tube, parallelogram tubes, ribbed tubes, drop-shaped tube, finned tubes, twisting different tube, B-tube, D tube and multilayer tube.
Pipe according to the profile shape and is divided into: sectional steel and variable cross-section steel. Variable Section (or variable cross-section) pipe refers sectional shape along the longitudinal direction of the tube on the inside and outside diameter and wall thickness variations occur cyclic or acyclic steel. The main are: outer conical tubes, tapered inner tube, the outer stepped tube, ladder pipes, cycle section, bellows, spiral, finned pipe and barrel with a double-track and so on.


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