108*18 20# Seamless Steel Pipe, Thick-Wall Seamless Pipe

Seamless steel pipes are pipes made by piercing a solid round steel billet, featuring no welds on the surface and are known as seamless 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, jacking pipes, etc. Seamless steel tubes are divided into round and non-round shapes based on their cross-sectional shape. Non-round tubes come in various complex shapes such as square, elliptical, triangular, hexagonal, pumpkin-shaped, star-shaped, and winged tubes. Diameters range up to 900mm and down to 4mm. Depending on their application, they vary.Thick-walled Seamless Steel PipeAndThin-walled Seamless Steel PipeSeamless steel pipes are mainly used for oil applications.Geological Drilling PipeCracking pipes for oil, boiler pipes, bearing pipes, as well as high-precision structural steel pipes for automobiles, tractors.

Seamless steel pipes with no seams along their cross-sectional periphery. They are classified into different types based on the production method.Hot-rolled tubeCold Rolled TubesCold drawn tubeExtruded TubesJacking pipeEach has its own process specifications.

Material options include standard andCarbon structural steel(Q215-A to Q275-A and 10 to ...)Grade 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 according to 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 parts for conveying fluids.

2. Offered in three categories based on different applications:

Available by chemical composition and mechanical properties.

b. Supplied by mechanical properties

c. As perWater Pressure TestSupplies. 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 TubeElectricity, geological, and oil use seamless steel pipes, and various types.

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 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, and save materials and labor hours, and are widely used in steel pipe manufacturing.