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How much do you know about stainless steel rectangular tubes

Jan 19,2022

Stainless steel rectangular tube is hollow long steel, because the section is square, so called square tube. Stainless steel rectangular pipes are used as a large number of pipelines for transporting fluids, such as oil, natural gas, water, natural gas, steam, etc. They are light in weight when the bending pipe and torsional strength are the same. Therefore, stainless steel rectangular pipes are also widely used in the manufacture of mechanical parts and engineering structures.

What is stainless steel rectangular tube?

Performance of Stainless Steel Rectangular Tube

Metal can react with oxygen in the atmosphere to form an oxide film on the surface. The iron oxide formed in ordinary carbon steel will continue to oxidize, and the rust will continue to expand, eventually forming holes. In this way, paint or oxidizing metal plating can be used to protect the surface of carbon steel, but this protective layer is only a thin film. After the protective layer is destroyed, the steel below begins to rust again. Whether stainless steel pipes rust is related to the chromium content in steel, and it is not easy to corrode when the chromium content in steel reaches 12%. The chromium content in Xibao 201 stainless steel pipe reaches more than 13%, and the chromium content in 304 stainless steel pipe reaches more than 18%.

Applicable conditions of stainless steel rectangular tube

In the atmosphere, the surface of the stainless steel tube is passivated to form a dense chromium oxide to protect the surface and prevent further property. This oxide layer is very thin, you can see the natural luster of the steel surface, so that stainless steel has a unique surface. After the chromium film is destroyed, the chromium in the steel and the oxygen in the atmosphere will regenerate the passivation film and continue to play a protective role. In some special environments, stainless steel will also be partially corroded and failed, but stainless steel is different from carbon steel and will not be uniformly corroded and failed, so the corrosion allowance is meaningless to stainless steel pipes.

Stainless steel rectangular tube use

Stainless steel square tubes are mainly used in the manufacture of conveying pipes in industry. Of course, in the construction industry, stair railings, protective windows, railings, road partitions, etc. are more widely used. Now many products use stainless steel pipes, such as bicycles, medical equipment, automobiles, etc.

Advantages of stainless steel square tube

Of course, there are some reasons for the wide use of stainless steel square tubes. The most important of these are long life, corrosion resistance, light weight, but high strength, which reduces the weight of the product, increases the bearing capacity, and allows consumers to use it more confidently.

Introduction to Stainless Steel Square Pipe Specification

The specifications of stainless steel pipes generally only look at the inner diameter and wall thickness, and the length can be determined according to the needs of consumers. The specifications of common stainless steel pipes on the market are above 6.0mm in inner diameter and below 13mm in wall thickness. The inner diameter is greater than 30mm and the wall thickness is greater than 1.2mm. The inner diameter is greater than 30mm and the wall thickness is less than 1.2mm.