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Seamless Tube

Jul 08, 2017

            Tubing is the material used to make pipe fittings. Different pipe fittings to use different tubing, the quality of the pipe directly determines the mass of the pipe. Construction, power plants, chemical plants, such as more use of such tubes, has the implementation standard GB/T5310, uses in the high pressure boiler: has carries out the standard gb/t8163, transports the fluid to use the seamless steel tube: has carries out the standard GB3087, the low pressure boiler uses the seamless steel tube: has carries out the standard gb/t9948, the petroleum cracking seamless steel tube: has carries out the standard gb/t14976, the fluid 12cr1mov) Carbon steel (#, $number, $number) Stainless steel (304, 316).Tube

             It is a long strip steel with a hollow section and no seams around it. The steel pipe has a hollow section and is used as a conduit for conveying fluids, such as pipelines for oil, gas, gas, water and some solid materials. Steel pipe and round steel, such as solid, in the flexural and torsional strength of the same time, light weight, is an economic section of steel, widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipe, automobile propeller shaft, bicycle racks and construction of steel scaffolding, etc. The use of steel tubes to make annular parts can improve the utilization of materials, simplify manufacturing processes, save material and processing hours, such as rolling bearing rings, Jack sets, etc., is widely used in steel pipe. Steel pipe or a variety of conventional weapons indispensable materials, barrel, barrel, etc. to be made of steel pipe. The different shape of the cross-section of the steel pipe can be divided into round pipe and shaped tube. As the circumference is equal, the circle area is the largest, and more fluids can be transported with a circular tube. In addition, the ring section under the internal or external radial pressure, the force is more uniform, so most of the pipe is round pipe. However, the circular tube also has certain limitations, such as in the plane bending conditions, the round pipe is not as square, rectangular tube bending strength, some agricultural machinery skeleton, steel wood furniture, such as common square, rectangular tube. Special shaped steel tubes with different cross-section shapes are also required for various purposes.Tube

              1. Structural Seamless steel pipe ($literal) is used for general structure and mechanical structure of seamless steel tubes. 2. Fluid Transport Seamless Steel pipe ($literal) is used for conveying water, oil, gas and other fluids of the general seamless steel tube. 3. Low-medium-pressure boiler seamless steel pipe (gb3087-1999) is used for the manufacture of various structures of low medium pressure boiler superheated steam pipes, boiling water pipes and locomotive boilers with superheated steam pipes, opium pipes, small smoke pipes and arch bricks for the use of high-quality carbon structural steels hot rolling and cold (rolling) seamless steel tube 4. High-pressure boiler seamless steel pipe (STD) is used for the manufacture of high-pressure and above the pressure of the water pipe boiler heating surface of high-quality carbon steel, alloy steel and stainless steel pipe. 5. High-pressure seamless steel pipe for fertilizer equipment (gb6479-86) is a high quality carbon structural steel and alloy steel seamless steel pipe for the working temperature-40~400℃, working pressure for ~ chemical equipment and pipelines. 6. The petroleum cracking seamless steel tube (gb9948-88) is applies to the petroleum refinery the stove tube, the heat exchanger and the pipeline seamless steel tube. 7. The geological Drilling pipe (YB235-70) is a steel pipe used by the geological Department for Core drilling, which can be divided into drill pipe, drill collar, core tube, casing and settling pipe. 8. Diamond Core drilling Seamless steel pipe (gb3423-82) is used for diamond core drilling drill pipe, core rod, casing seamless steel pipe. 9. The oil drilling pipe (yb528-65) is a seamless steel tube used in both ends of an oil drilling. The steel pipe is divided into two kinds of wire and not, the wire is connected with the wire, the method of butt welding is connected with the tool joint. 10. Marine Carbon Steel Seamless pipe (gb5213-85) is the manufacture of ship I-class pressure-resistant pipe system, Ⅱ-class pressure-resistant piping, boilers and superheater steel seamless steel tubes. Carbon steel seamless steel pipe wall operating temperature of not more than 450 ℃, alloy steel seamless steel pipe wall operating temperature of more than 450 ℃.Tube