Seamless steel tubes are formed by piercing a solid round steel billet, resulting in pipes without any visible welds on the surface. 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 Tubes, Jacking Pipes, etc. Seamless steel tubes are categorized into round and non-round shapes based on their cross-sectional shape. Non-round tubes come in various complex shapes, including square, elliptical, triangular, hexagonal, melon-shaped, star-shaped, and winged tubes. Diameters range from 900mm to 4mm. Depending on their applications, they areThick-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 steel tubes for automobiles, tractors, and high-precision structures.
Seamless steel pipes with no seams along the periphery of their cross-section. Divided into different types based on the production method.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 to ...)50# steelLow-alloy steel (09MnV, 16Mn, etc.), alloy steelStainless acid-resistant steelWait.
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 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 pipes or structural parts conveying fluids.
2. Offer three types of supplies 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 special applicationsBoiler Seamless PipeA variety of seamless steel tubes for power and geological use, as well as oil seamless pipes.
Seamless steel tubes feature hollow 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 cross-sectional 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.
