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Pretreatment and application of straight seam steel pipe
Pre-treatment of straight seam steel pipes: non-destructive testing inside the welds Since the pipes are extra-large steel pipes in water supply projects, especially steel pipes with a thickness of t=30mm are used as pipe bridges, which not only bear internal water pressure but also bear the bend...Read more -
The series of diameter dimensions and heating physical deformation stipulated in the standard of straight seam steel pipe
Series of diameters specified in the standard for straight seam steel pipes: the nominal diameter of straight seam steel pipes refers to the series of diameters specified in the standards for straight seam steel pipes. For straight seam steel pipes, pipe fittings, valves, etc., the nominal straig...Read more -
The difference between fixed welding joints, rotating welding joints, and prefabricated welding joints in steel pipeline welding
Fixed welding means that the joints of the steel pipes cannot be moved after being assembled, and the welding is performed according to the change of the welding position (horizontal, vertical, upward, and mid-level changes) during the welding process. Rotating the welding port is to rotate the w...Read more -
How to correctly judge the thickness of stainless steel welded steel pipe
How to correctly judge the thickness of the stainless steel welded steel pipe The thickness of the stainless steel welded steel pipe refers to the wall thickness of the pipe. Tell everyone that the wall thickness of the stainless steel welded steel pipe will be attached to the pipe under normal c...Read more -
The principle of anti-corrosion steel pipes
Coating anticorrosion is a uniform and dense coating formed on the surface of de-rusting steel pipes, which can isolate it from various corrosive media. Steel pipe anti-corrosion coatings are increasingly using composite materials or composite structures. These materials and structures must have ...Read more -
Quality requirements for seamless steel pipes
1. Chemical composition of steel: The chemical composition of steel is the most important factor affecting the performance of seamless steel pipes, and it is also the main basis for formulating the parameters of the rolling process and heat treatment of seamless steel pipes. (1) Alloying elements...Read more