108*4 20# Seamless Steel Pipe

Seamless steel pipes are made by piercing a solid round steel billet, which are pipes without any welds on the surface. 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 categorized into round and shaped types based on cross-sectional shape. The shaped 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 as small as 4mm. Depending on their application, they vary.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 tubes without joints along their cross-sectional periphery. Divided into different categories 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)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 parts for conveying fluids.

2. Offer three categories of supply based on different applications:

a. Supplied by chemical composition and mechanical properties.

b. Supplied by 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 purposesBoiler Seamless TubePower, geological, and oil seamless steel pipes, among others.

Seamless steel tubes feature a hollow cross-section 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 cross-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 used in construction, enhance material utilization, simplify manufacturing processes, and save on materials and labor, making steel pipes a widely used choice for production.