Steel tubing

- May 04, 2018 -

steel tubing-3.jpgIt has a hollow section whose length is much larger than that of steel with diameter or circumference.It is divided into

circular, square, rectangular and special-shaped steel tubes by section.The materials are divided into carbon structural steel pipes, low-alloy structural steel pipes, alloy steel pipes and composite steel pipes.It is divided into transportation pipeline, engineering structure, thermal equipment, petrochemical industry, machinery manufacturing, geological drilling, high-pressure equipment, etc.According to the production process, it is divided into seamless steel tube and welded steel pipe, among which the seamless steel tube is divided into hot rolling and cold rolling (drawing), and the welded steel pipe is divided into straight seam welded steel tube and spiral seam welded steel pipe.

Steel pipes are not only used for conveying fluids and powdery solids, exchanging heat energy, making mechanical parts and containers, but also a kind of economic steel.The steel tube is used to fabricate the frame, strut and mechanical support, which can reduce the weight, save the metal 20 ~ 40%, and realize the mechanized construction of factory.Using steel pipe to make highway bridge not only can save steel, simplify construction, but also greatly reduce the area of coating protection layer, save investment and maintenance cost.

The steel pipe is divided into seamless steel tube and welded steel pipe.The process of seamless steel tube production is to put the solid tube billet or steel ingot into a hollow capillary tube, and then roll it into the steel tube for size.Different methods of producing seamless steel pipe are made by different perforation and rolling method.The process of welding steel pipe is to bend the tube billet (steel plate or strip steel) into a tube, then weld the seam to become steel pipe.Different methods of producing welded steel pipe are formed due to different forming and welding methods.

steel tubing-2.jpgSeamless steel pipe is mainly produced by hot rolling.The extruding method is mainly used in the production of the low plastic high alloy steel pipe or the different type steel tube and the composite metal tube.Cold rolling and cold drawing can process the hot rolled tube into small diameter and thin steel tube.The process of welding steel tube is simple, high efficiency, low cost and increasing variety of products.

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