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To be fair, the advantages of black steel pipe are the necessary features according to its working environment. In most situation, the steel pipe is installed for arduous industrial purposes. These pipes need to bear the internal and external pressure. To achieve such purpose, they are made from high quality steel and the assembly should be extremely careful. For instance, while they are used for risers and flow lines, the strength is required.
Welded steel pipes are popular for its strength. But their reliability could not be comparable to seamless steel pipes. The manufacturing process of welded steel pipes has been disclosed. To achieve higher levels, the process used to manufacture API pipes is popularized. In brief, the process consists of producing steel plate, shaping the plate and welding. To insure the toughness of the steel, the heat treatment is essential during the producing process of steel plate.
With the different workmanship, another type of steel pipe could be attained. As what was mentioned above, the seamless steel pipes are not like the welded pipes. The seamless pipes are invented posterior to welded pipes. The properties of seamless pipes are enhanced after the formation. Unlike the welded pipes, the heat treatment is not able to apply with the same way. The manufacturing technique of seamless is disclosed as well. Quenching is the key point to improve the hardenability. The quenching methods used for thin pipes and thick pipes are different. According to the thickness, the pipes would have different strength.
It is conceivable that the advantages of black steel pipe is the reason to make it popular. Even though the manufacturing technique has been disclosed, the quality of the final products are different. Accordingly, the manufacturers who are familiar with the operation have the opportunity for offering reliable products. In addition, as the requirements changes all the time, new technique is needed to produce new pipes to meet new demand. Customized pipes are available and most manufacturers who provide standardized pipes could satisfy the unique expectations.
The welded steel pipe and API steel pipe are also available.
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We supply the following products: API steel pipe | black steel pipe | welded steel pipe
