Seamless steel pipes are formed by piercing a solid round steel billet, which are钢管 without any welds on their surface, known as seamless steel pipes. According to the production method, seamless steel pipes can be categorized into...Hot-rolled Seamless Steel Pipe、Cold-rolled Seamless Steel Pipe、Cold Drawn Seamless Steel PipeExtruded Seamless Steel Tubes, pipe jacking, etc. Seamless steel tubes are categorized into circular and non-circular shapes based on cross-sectional form, with non-circular shapes including square, elliptical, triangular, hexagonal, pumpkin-shaped, star-shaped, and wing-shaped tubes, among others. Diameters range up to 900mm and down to 4mm. They vary in application.Thick-walled Seamless Steel PipeAnd薄壁 Seamless Steel PipeSeamless steel tubes are primarily used for the oil industry.Geological Drilling PipeCracking pipes for oil, boiler tubes, bearing tubes, as well as structural steel tubes for automotive, tractor, and high-precision applications.
Seamless steel pipes without seams along their cross-sectional perimeter. They are classified according to different production methods.Hot-rolled pipeCold Rolled PipeCold Drawn TubeExtruded tubesJacking pipeAll have their respective process specifications.
Material options include standard andCarbon structural steel(Q215-A to Q275-A and 10 to)50# steelLow-alloy steel (09MnV, 16Mn, etc.), alloy steelStainless acid-resistant steelPlease wait.
General-purpose (used for water, gas pipelines and structural components, mechanical parts) and specialized (used for boilers, geological exploration, bearings, acid-resistant, etc.) categories based on application.
1. General-purpose seamless steel tubes are made from ordinaryCarbon structural steel、Low-alloy structural steelOrAlloy structural steelRolling, high yield, mainly used for pipes or structural parts conveying fluids.
2. Offer three categories of supply based on different applications:
Available by chemical composition and mechanical properties.
b. Supplied by mechanical properties
c. As perWater Pressure TestSupply. Steel pipes supplied under categories a and b, which are used to withstand liquid pressure, must also undergo hydrostatic testing.
3. Seamless tubes for special applicationsBoiler Seamless TubeVarious types, including seamless steel tubes for power and geological use, as well as seamless pipes for oil applications.
Seamless steel tubes feature hollow cross-sections and are extensively used as pipelines for conveying fluids, such as oil, gas, water, and certain solid materials. Compared to solid steel products like round bars, seamless steel tubes have the same bending and torsional strength but are lighter in weight, making them an economical section steel.
Broadly used in the manufacture of structural components and mechanical parts, such as oil drill pipes.Automotive Propeller ShaftCircular components made from steel pipes, such as bicycle frames and steel scaffolding for construction, can improve material utilization, simplify manufacturing processes, save materials and processing time, and are widely used in pipe manufacturing.
