Seamless steel pipes are钢管 that are pierced from a solid round steel billet, featuring no weld seams on the surface. They are known as seamless steel pipes. Depending on the production method, seamless steel pipes can be categorized into...Hot-rolled Seamless Steel Pipe、Cold Rolled Seamless Steel Pipe、Cold drawn seamless steel tubeExtruded seamless steel tubes, jacking pipes, etc. Seamless steel tubes are divided into circular and irregular shapes according to their cross-sectional shapes. Irregular tubes come in various complex shapes, including square, elliptical, triangular, hexagonal, pumpkin-shaped, star-shaped, and winged tubes. Diameters range from 900mm to 4mm. Depending on their applications, they haveThick-walled Seamless Steel PipeAndThin-walled Seamless Steel PipeSeamless steel tubes are mainly used for oil applications.Geological Drilling PipeCracking pipes for oil, boiler tubes, bearing tubes, as well as high-precision structural steel tubes for automobiles, tractors.
Seamless steel pipes without joints along their cross-sectional circumference. They are classified into different types based on the production methods.Hot-rolled tubeCold Rolled PipeCold Drawn TubeCompression tubePipe JackingEach has its own 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 items (used for water, gas pipelines and structural components, mechanical parts) and specialized items (used for boilers, geological exploration, bearings, acid resistance, etc.) are divided into two categories according to their applications.
1. General-purpose seamless steel pipes are made from ordinaryCarbon structural steel、Low-alloy structural steelOrAlloy structural steelRolling, high yield, mainly used for pipeline or structural parts conveying fluids.
2. Offer three categories of supply based on different applications:
Available by chemical composition and mechanical properties.
b. Supply according to 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 specialized useBoiler Seamless TubeVarious types, including seamless steel tubes for electric use, geological use, and oil use.
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 Drive ShaftCircular components made from steel pipes, such as bicycle frames and steel scaffolding for construction, can enhance material utilization, streamline manufacturing processes, and save on materials and processing time, and are widely used in pipe manufacturing.
