Seamless steel tubes are made by piercing a solid round steel rod, resulting in a pipe without any visible welds on its 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 tubeExtruded Seamless Steel Tubes, jacking pipes, etc. Seamless steel tubes are divided into round and shaped types according to their cross-sectional shapes. The shaped tubes include square, elliptical, triangular, hexagonal, melon-shaped, star-shaped, and winged tubes with various complex shapes. Diameters range up to 900mm and as small as 4mm. Depending on their applications, they differ.Thick-walled Seamless Steel PipeAnd薄壁 Seamless Steel PipeSeamless steel tubes are primarily used for oil applications.Geological Drilling PipeCracking pipes for oil, boiler pipes, bearing pipes, and high-precision structural steel pipes for automobiles, tractors.
Seamless steel pipes without seams along their cross-section perimeter. Divided into different types according to the production methods.Hot-rolled pipeCold rolled tubeCold Drawn Tubeextruded tubePipe JackingEach 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 piping or structural components for fluid conveyance.
2. Offer three categories of supply based on different applications:
a. Supplied by chemical composition and mechanical properties
b. Supplied 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 special applicationsBoiler Seamless TubeVarious 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 products 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 drilling rods.Automotive Propeller ShaftSteel pipe ring components for bicycle frames and steel scaffolding used in construction are widely manufactured using steel pipes, which enhance material efficiency, streamline production processes, and save on materials and processing time.
