The Classification of Stainless Steel Pipe

In the previous article we learned the basic information and development of Stainless steel pipes, do you remember? Today Sunthai will introduce the classification of Stainless steel pipes. Have you chosen the right Stainless steel pipes?

 

Classification of stainless steel pipe

Stainless steel pipe are divided into ordinary carbon steel pipes, high-quality carbon structural steel pipes, alloy structural pipes, alloy steel pipes, bearing steel pipes, stainless steel pipe and bimetal composite pipe coated pipes to save precious metals and meet special requirements. There are many types of stainless steel pipe, different uses, different technical requirements and different production methods. The outer diameter range of steel pipe currently produced is 0.1-4500mm, and the wall thickness range is 0.01-250mm. To distinguish its characteristics, steel pipes are usually classified as follows.

 

1. Production method of stainless steel pipe

Stainless steel pipes are divided into two types of seamless pipes and welded pipes according to the production method. Seamless steel pipes can be divided into hot rolled pipes, cold rolled pipes, cold drawn pipes, and extruded pipes. Cold drawn and cold rolled are the secondary processing of steel pipes; Welded pipes are divided into straight seam welded pipes and spiral welded pipes.

 

2. Sectional shape of stainless steel pipe

Stainless steel pipes can be divided into round tubes and special-shaped tubes according to the cross-sectional shape. Special-shaped tubes include rectangular tubes, diamond tubes, oval tubes, hexagonal tubes, octagonal tubes, and various asymmetric tubes. Special-shaped tubes are widely used in various structural parts, tools and mechanical parts. Compared with the round pipe, the special-shaped pipe generally has a larger moment of inertia and a section modulus, and has greater resistance to bending and torsion, which can greatly reduce the weight of the structure and save steel.

 

Stainless steel pipes can be divided into equal-section pipes and variable-section pipes according to their longitudinal section shapes. Variable section tubes include conical tubes, stepped tubes and periodic section tubes.

 

3. The shape of the pipe end of stainless steel pipe

Stainless steel pipes can be divided into light tube and wire tube according to the state of the tube end. Car wire tubes can be divided into ordinary car wire tubes and special threaded pipes. Ordinary car wire tubes are generally used for conveying low-pressure pipes such as water and gas. They are threaded with ordinary cylindrical or conical pipes. Special threaded pipes are used for petroleum and geological drilling. For some special-purpose pipes, in order to compensate for the influence of the thread on the strength of the pipe end, the pipe end is usually thickened before the wire is turned.

 

4.Use classification of stainless steel pipe

It can be divided into oil well pipe, pipeline pipe, boiler pipe, mechanical structure pipe, hydraulic pillar pipe, gas cylinder pipe, geological pipe, chemical pipe and ship pipe.

 

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