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Hot-Rolled Seamless Pipes – Manufactured by heating billets and piercing or rolling. Suitable for large-scale industrial use with a wide range of diameters.
Cold-Drawn Seamless Pipes – Pulled from hot-rolled blanks to achieve precise dimensions and uniform wall thickness. Ideal for mechanical, hydraulic, and instrumentation applications.
Cold-Rolled Seamless Pipes – Offers excellent surface finish and tight tolerances, commonly used for precision equipment.
Material Grades
Material Grades
Carbon Steel
Carbon Steel
Q195, Q215, Q235, Q345
Used in general industrial piping, structural support
Low-Alloy Steel
Low-Alloy Steel
10CrMo910, 20#, 16Mn
Suitable for boilers, pressure vessels, and high-temperature pipelines
Alloy Steel
Alloy Steel
15CrMoG, 12Cr1MoV
For high-temperature and high-pressure fluid transport in petrochemical and power industries
Precision Steel
Precision Steel
20#, 45#, 40Cr, etc.
For mechanical, hydraulic, automotive, and aerospace applications requiring high dimensional accuracy
Size: DN6-1200mm
Thickness: 0.5mm to 50mm
Length:Standard: 6 meters; Random: 5–7 meters; Custom length available upon request
Length:Standard: 6 meters; Random: 5–7 meters; Custom length available upon request
Application:
Industrial Fluid Transport
Water, steam, oil, gas pipelines
Petrochemical, chemical, and power industries
Pressure classes from low to high
Material: Carbon steel, low-alloy steel
Wall Thickness: 2–25 mm
High-Pressure Boilers and Heat Exchangers
High-Pressure Boilers and Heat Exchangers
High-temperature steam pipelines
Heat exchangers and thermal conduits
Material: 12Cr1MoV, 15CrMoG
Wall Thickness: 5–50 mm
Structural and Mechanical Applications
Structural and Mechanical Applications
Structural supports, steel frameworks
Machine shafts and hydraulic cylinders
Automotive, shipbuilding, aerospace components
Material: Q235, Q345, 20#, 45#
Wall Thickness: According to load requirements
Petrochemical and Corrosion-Resistant Piping
Petrochemical and Corrosion-Resistant Piping
Oil, natural gas pipelines
Chemical liquid transport
Marine and corrosive environments
Material: Low-alloy steel, alloy steel
Wall Thickness: 6–30 mm
Precision Applications
Precision Applications
Hydraulic systems and gas transmission
Instrumentation pipes
Requires high dimensional accuracy and smooth surfaces
Quick Selection Guide
Quick Selection Guide
General Fluid Transport → Carbon Steel Q235 seamless pipe
High-Pressure Steam / Boiler → 12Cr1MoV / 15CrMoG
Corrosive Chemicals → Low-alloy steel or alloy steel
Mechanical / Hydraulic → Cold-drawn precision seamless pipe
High-Temperature Heat Transfer → Heat-resistant alloy steel
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