Seamless steel tubes are made by piercing a solid round steel billet and are characterized by their smooth surface without any welds. Depending on the production method, seamless steel tubes can be categorized into...Hot-rolled Seamless Steel Pipe、Cold Rolled Seamless Steel Pipe、Cold Drawn Seamless Steel PipeExtruded Seamless Steel Pipes, jacking pipes, etc. Seamless steel pipes are divided into circular and non-circular types based on cross-sectional shape. Non-circular pipes come in various complex shapes, including square, elliptical, triangular, hexagonal, melon-shaped, star-shaped, and winged pipes. Diameters range up to 900mm and as small as 4mm. Depending on their applications, they differ.Thick-walled Seamless Steel PipeAndThin-walled Seamless Steel PipeSeamless steel tubes are mainly used for oilGeological Drilling PipeCracking pipes for oil, boiler pipes, bearing pipes, and high-precision structural steel pipes for automobiles, tractors.
Seamless steel pipes with no seams along the circumference of their cross-section. They are categorized according to different production methods.Hot-rolled pipeCold Rolled TubeCold Drawn TubeExtruded tubesJacking pipeEach has its own process specifications.
Material options include standard andCarbon structural steel(Q215-A to Q275-A and 10~)50 steelLow-alloy steel (09MnV, 16Mn, etc.), alloy steelStainless acid-resistant steelPlease wait.
General-purpose items (used for water and gas pipelines, structural components, and mechanical parts) and specialized items (used for boilers, geological exploration, bearings, acid resistance, etc.) are divided into two categories based on their applications.
1. General-purpose seamless steel tubes are made from ordinaryCarbon structural steel、Low-alloy structural steelOrAlloy structural steelRolling, high yield, mainly used for pipe or structural parts for conveying fluids.
2. Offer three categories of supply based on different applications:
Available by chemical composition and mechanical properties
b. Supplied according to mechanical properties;
c. As perHydrostatic 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 specialized useBoiler Seamless PipeVarious types, including seamless steel tubes for electrical 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 materials like round bars, they are lighter in weight while maintaining the same bending and torsional strength, making them an economical section steel.
Broadly used in the manufacturing 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 enhance material utilization, simplify manufacturing processes, save materials and labor hours, and are widely used in pipe manufacturing.
