Seamless carbon steel pipe is a kind of hollow steel, which is a large number of pipelines for transporting oil, natural gas, water, gas, steam and other fluids. In addition, it is engaged in bending resistance, torsional strength and light weight, so it is widely used in the manufacture of mechanical parts and engineering structures.
Classification of carbon steel pipes: Carbon steel pipes can be divided into two categories: seamless steel pipes and welded steel pipes. According to the cross-sectional shape, it can be divided into round pipes and special-shaped pipes. Round steel pipes are widely used, but there are also some square, rectangular, semicircular, hexagonal, equilateral triangle, and octagonal steel pipes. For steel under fluid pressure, hydraulic test should be carried out to check its bearing capacity and quality, no leakage under pressure requirements, and qualified moisture or expansion. Test, flattening test.
Seamless pipe are made from perforated or solid steel ingots through capillary tubes and then hot rolled, cold rolled or cold rolled. Seamless steel pipe of diameter*thickness specification expressed in millimeters. Seamless steel pipes are divided into two categories: hot and cold seamless steel pipes. Ordinary hot-rolled seamless steel pipes, low and medium pressure boiler pipes, high pressure boiler pipes, steel pipes, stainless steel pipes, petroleum cracking pipes, geological steel pipes, etc. Cold-rolled pipes are divided into general seamless steel pipes, low-pressure boiler pipes, high-pressure boiler pipes, steel pipes, stainless steel pipes, petroleum cracking pipes, and other steel types, as well as carbon thin-walled steel, alloy steel thin-walled, inner-wall stainless steel, and special steel pipes.
Welded steel pipes with plates or strips are made by bending after forming and then welding. Welds are pressed into longitudinal and spiral welded pipe forms. It is divided into general pipe, galvanized pipe, wire casing, metric pipe, roller pipe, deep well pump pipe, automobile pipe, transformer pipe, welded pipe, welded special-shaped pipe and spiral welded pipe.
Read more :Common terms of smls pipe
Article source: https://article-realm.com/article/Finance/30325-Classification-of-seamless-carbon-steel-pipes.html
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