The use of seamless steel tubes

The use of seamless steel tubes
 

Product description:

Source: Shandong Precision Steel Plant http: //www.sdlggg.com pipe is a hollow section, no seams around the long bar of steel pipe with a hollow cross section, a large number of used pipes conveying fluids, such as transportation of oil and natural gas. , gas, water pipes, etc. and some solid materials. steel pipe and solid steel bar, etc. compared to the same torsional strength in bending, lighter, is an economic cross-section steel, widely used in the manufacture of structural parts and mechanical parts, such as drill pipe, automotive drive shafts, bicycle frames and construction using steel scaffolding. with a steel pipe manufacturing annular parts, can improve material utilization, simplify the manufacturing process, saving materials and processing time, such as bearing rings , jack sets, has been widely used to make steel. Steel or a variety of conventional weapons indispensable material, barrel, barrel would have to make steel. steel pipe shape by cross-sectional area can be divided into tube and Pipes Since at perimeter of equal conditions, the largest area of ​​a circle, with the circular tube can carry more fluid. In addition, the circular cross section to withstand internal or external radial pressure, the force is uniform, so must Most pipe is pipe. However, the tube also has some limitations, such as by plane bending conditions, the tube is not as good as square, rectangular tube bending strength, the skeleton of some farm machinery, steel and wood furniture on common square, rectangular tube. Depending on the application should also have other cross-sectional shape shaped pipe. 1. Structural seamless steel pipe (GB / T8162-2008) is used for general structural and mechanical structure of seamless steel pipe 2. fluid transport Seamless Steel Tube (GB / T8163-2008) is generally seamless steel pipe used for conveying water, oil, gas and other fluids. 3. The low and medium pressure boiler seamless pipe (GB3087-2008) is used to manufacture various structural low medium pressure boiler superheated steam pipes; boiling water pipes and superheated steam locomotive boiler tubes; opium pipe;. small pipe and brick arch effective high-quality carbon structural steel hot-rolled and cold drawn (rolled) seamless steel pipe 4. The high-pressure boiler high-quality carbon steel seamless steel pipe (GB5310-2008) is used to manufacture high-pressure and more pressure water tube boiler heating surface with steel, alloy steel and heat-resistant stainless steel seamless steel tubes. 5. Fertilizer equipment high pressure seamless steel pipe (GB6479-2000) is applicable to operating temperature -40 ~ 400 ℃, working pressure of high-quality carbon structural steel and alloy steel 10 ~ 30Ma of chemical equipment and pipeline of seamless steel tubes. 6. petroleum cracking seamless steel pipe (GB9948-88) is applied to the oil refinery furnace tubes, heat exchangers and pipe seamless steel pipe. 7. Geological Drilling Pipe (YB235-70) is for the geological department of the steel used in core drilling, can be divided according to purpose the drill pipe, drill collar, core pipe, casing and precipitation tubes. 8. Diamond core drilling seamless pipe (GB3423-82) is used for diamond core drilling drill, core rods, casing without pipe joints 9. oil drilling pipe (YB528-65) for oil drilling within the thickening or external upset ends of seamless steel tubes. Steel sub-threading and not two, Threading Pipe Fittings links, not threading methods and tools useful butt joint connection. 10. The ship carbon steel seamless pipe (GB5213-85) is the manufacture of pressure vessels piping Class I, Ⅱ grade pressure piping, boilers and Superheater carbon steel seamless steel tubes. Carbon steel seamless pipe wall temperature does not exceed 450 ℃, alloy steel seamless pipe wall temperature exceeds 450 ℃. 11. automobile axle casing seamless steel pipe (GB3088-82) is to create automobile axle casing and drive shaft tubes Bridge shell quality carbon structural steel and alloy steel hot-rolled seamless steel tubes. 12. diesel engine with high-pressure pipe (GB3093-86) is the manufacture of high-pressure diesel injection systems without cold drawn tubes pipe joints 13. Hydraulic and pneumatic cylinder with precision internal diameter seamless pipe (GB8713-88) is the manufacture of hydraulic and pneumatic cylinder with precision seamless cold drawn or cold rolled with precision diameter size 14. drawn or cold rolled precision seamless steel pipe (GB3639-83) is used for mechanical structure with high dimensional accuracy, hydraulic equipment and surface finish of a good cold-drawn or cold rolled precision seamless steel pipe. Use a precision seamless steel pipe manufacturing mechanical structure or hydraulic equipment , can greatly reduce machining time, improve material utilization, and help to improve product quality 15. The structure of stainless steel seamless pipe (GB / T14975-1994) is widely used in chemical; petroleum; Textile; medical; food; Hot-rolled stainless steel machinery and other industrial corrosion resistant pipes and structural parts and components made of (extrusion, expansion) and cold drawn (rolled) seamless steel pipe 16. The fluid transport stainless steel seamless pipe (GB / T14976-1994) hot-rolled for the transmission fluid made of stainless steel (extrusion, expansion) and cold drawn (rolled) seamless steel pipe. 17. Shaped seamless steel pipe is in addition to other cross-sectional shape of seamless steel tubes in general Press steel cross-sectional shape and size and so on can be divided into different shaped seamless steel pipe wall thickness (code D), shaped seamless steel pipe wall thickness range (codenamed BD), variable diameter seamless steel pipe shaped (codenamed BJ). Shaped seamless steel tubes are widely used in various structural parts, tools and mechanical parts. and the tube compared Pipes generally have a greater moment of inertia and section modulus, flexural torsional greater ability can be greatly reduce the structural weight, saving steel should be extensive: fluid pipes, boiler plant, engineering, mechanical processing.