What are the differences between straight seam steel pipes of different specifications

Straight seam steel pipe is a kind of welded steel pipe, which is used in our daily life. I believe that many people who are in contact with pipeline engineering have heard of straight seam steel pipe. Let us introduce the difference between different specifications of straight seam steel pipe.

There are many kinds of steel pipes, which can be divided into straight seam steel pipes and spiral steel pipes according to the welding method. Because the welding methods of these two steel pipes are different, the performance is also different. According to the different uses of steel pipes, welded pipes can be subdivided into the following types: General There are many classifications of steel pipes in practical applications, such as welded pipes, wire casing pipes, automobile pipes, oxygen-blown welded pipes, etc., so I won’t list them one by one here.
General welded pipe: the main function of general welded pipe is to transport some fluids. During the manufacturing process, general welded pipes are made of low carbon steel, which is easy to be welded by electric welding. This kind of steel pipe should meet the specifications of thickened steel pipes. , deformation and other tests, in order to pass such tests, the manufacturing process and quality of general welded pipes are required. Although the delivery length of general welded pipes is 4 meters to 10 meters, it is not fixed and can be adjusted according to the needs of customers. , with the continuous development of modern welded pipe technology, the quality of straight seam steel pipes is getting better and better. At present, straight seam steel pipes can replace most steel pipes and have many applications in engineering.
Metric welded pipe: The metric welded pipe has the same specifications as the stainless steel pipe. The metric welded pipe is based on ordinary carbon steel, high-quality carbon steel or low kinetic energy improved alloy steel, and then welded by hot and cold strip welding, or using hot zone and electric welding process Made by welding and post cold drawing.
Metric inch welded pipes are divided into ordinary pipes and thin-walled pipes, which are used to manufacture prefabricated components, such as automobile drive shafts or transport working fluid mechanics. Thin-walled pipes are used in the production process of enterprises such as furniture and lamps. Compressive strength and tensile properties tests were implemented.
Roller tube: Roller tube is a special kind of steel tube, which is mainly used as an electric welded steel tube for belt idlers. During the manufacturing process, it needs to be inspected for pressure and deformation; spiral welded steel tube: the high carbon steel strip is made according to the general structural steel Or low-alloy structure can set the helix angle (called forming angle) cold rolled into tube blanks, and then weld the pipe joints together to make large straight seam steel pipes. Spiral welded pipes are suitable for petrochemical transportation, and their specifications mainly depend on Depending on the type of steel pipe, spiral welded steel pipe has single-side and double-side welding and front and back welding. The welded pipe should ensure welding and pressure test, good design requirements for compressive strength and cold drawing performance.