How to classify stainless steel tube

There are many kinds of stainless steel tubes. In order to distinguish their characteristics, stainless steel tubes are usually classified as follows.

Stainless steel tube is a kind of hollow long circular steel, which is widely used in industrial transportation pipelines such as petroleum, chemical industry, medical treatment, food, light industry, mechanical instrument, etc., as well as mechanical structural components. In addition, when the bending and torsional strength are the same, the weight is lighter, so it is also widely used in the manufacture of mechanical parts and engineering structures. It is also commonly used as furniture and kitchenware.

According to the material, stainless steel tube is divided into ordinary carbon steel pipe, high-quality carbon structural steel pipe, alloy structural pipe, alloy steel pipe, bearing steel pipe, stainless steel tube, and bimetallic composite pipe, coating, and coating for saving precious metals and meeting special requirements tube, etc. There are many types of stainless steel tubes with different uses, different technical requirements, and different production methods. The outer diameter of the currently produced steel pipe ranges from 0.1 to 4500mm, and the wall thickness ranges from 0.01 to 250mm. In order to distinguish its characteristics, stainless steel tubes are usually classified as follows.

stainless steel tube

Classification by production method:

Stainless steel tube is divided into two categories: seamless tube and welded tube according to the production method. Seamless steel tubes can be divided into hot-rolled tubes, cold-rolled tubes, cold-drawn tubes, and extruded tubes. In secondary processing; welded pipes are divided into straight seam welded pipes and spiral welded pipes.

Classified by section shape:

Stainless steel tubes can be divided into round tubes and special-shaped tubes according to their cross-sectional shape. Special-shaped tubes include rectangular tubes, diamond-shaped tubes, elliptical tubes, hexagonal tubes, octagonal tubes, and various asymmetrical 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 section modulus and has a larger resistance to bending and torsion, which can greatly reduce the weight of the structure and save steel.

Stainless steel tubes can be divided into equal section tubes and variable section tubes according to the shape of the longitudinal section. Variable section tubes include tapered tubes, stepped tubes, and periodic section tubes.

Classification by tube end shape:

Stainless steel tubes can be divided into bare tubes and thread tubes (threaded steel tubes) according to the state of the tube end. The threading pipe can be divided into ordinary threading pipes (pipes for low-pressure transportation of water, gas, etc., which are connected by ordinary cylindrical or conical pipe threads) and special threaded pipes (pipes for petroleum and geological drilling. For important threading pipes, use Special threaded connection), for some special pipes, in order to make up for the influence of the thread on the strength of the pipe end, the pipe end is usually thickened (internal thickening, external thickening or internal and external thickening) before threading.

Classification by use:

According to the application, it can be divided into oil well pipe (casing, oil pipe, drill pipe, etc.), line pipe, boiler pipe, mechanical structure pipe, hydraulic prop pipe, gas cylinder pipe, geological pipe, chemical pipe (high-pressure fertilizer pipe, oil cracking pipe) ) and marine pipes, etc.

The above is about the classification of stainless steel tubes, I hope to help you know more about stainless steel tubes. As a stainless steel tube supplier, Siyoute specializes in providing high-quality stainless steel tubes. If you are interested in stainless steel tubes, please pay attention to our website, we will provide more knowledge about stainless steel tubes.

 


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