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Special-shaped Tube & Pipe China Manufacturer & Supplier

Baokun specializes in manufacturing a variety ofshaped tubes and pipes using cold bending techniques. Our products include triangle, hexagon, square, rectangle, octagon, oval, D-shaped, and custom-shaped options crafted from hot rolled or cold drawn steel. With a commitment to quality, Baokun delivers precision-engineered solutions tailored to meet diverse industrial requirements.

  • Cold bending manufacturing process
  • Materials: Hot rolled and cold drawn steel
  • High dimensional accuracy
  • Seamless construction for improved integrity
  • Custom size and shape options available
Special-Shaped-Tube

Special Shaped Tube Series

Our special-shaped seamless steel pipes and tubes are designed with various cross-sectional shapes, including square, rectangular, oval, and hexagonal, catering to diverse industrial applications.
They are categorized into three types based on their wall characteristics: equal-wall thickness (code D), unequal wall thickness (code BD), and variable diameter (code BJ). Each type is engineered to deliver superior strength, bending, and torsional resistance, making them ideal for structural and mechanical uses in industries such as aerospace, automotive, shipbuilding, and construction.
BAOKUN offer customization options to meet specific project requirements and support wholesale orders for bulk needs, providing an economical, high-performance solution for specialized industrial applications.

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Tailored Solutions

Baokun offers comprehensive customization services, manufacturing tubes and pipes in various special shapes to meet customers’ specific requirements and industry standards, ensuring an ideal fit for your project.

High-Quality Materials

Our products are crafted from premium materials, providing excellent corrosion resistance, pressure tolerance, and heat resistance to ensure durability and reliability in even the most demanding environments.

Advanced Manufacturing Technology

With cutting-edge equipment and techniques, Baokun efficiently produces high-precision special-shaped tubes and pipes, guaranteeing strict quality standards and minimizing lead times.

Expert Technical Support

Our professional team offers full technical support and consulting to assist clients in addressing any challenges in designing and applying special-shaped pipes, ensuring smooth project execution.

Why Choose BAOKUN?

At Baokun, we offer a comprehensive range of high-quality seamless steel tubes and pipes at competitive prices. We provide flexible minimum order quantities to suit your specific requirements.

Our commitment to your satisfaction is reflected in our fast delivery times and our dedicated 15-member after-sales team, available 24/7 to provide support and answer any questions you may have.

We believe in transparency and offer a straightforward refund or replacement policy to ensure complete peace of mind. Partner with Baokun for reliable solutions and exceptional service that can help your business thrive.

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Baokun Special-shaped Tubes and Pipes in Details

special-shaped tube

special-shaped tube

special-shaped tube & pipe

special-shaped tube

More Information

Standard/Grade ASTM, DIN, EN, JIS, GB
Material Carbon steel/alloy steel
Thickness 1 – 35 mm
Shape Custom
Outer Diameter 20 – 600mm
Length 4-12m
Surface black paint, oil, galvanized, anti corosion coatings
Technique Cold Drawn / Hot Rolled

Cold Bending Techniques for Shaping Tubes and Pipes

Cold bending shapes tubes and pipes (square, rectangular, oval, or hexagonal) by applying mechanical force instead of heat, preserving the material’s strength and integrity.

Key techniques include mandrel bending, which uses internal support to prevent collapse in tight bends, and rotary draw bending, where dies create precise, repeatable curves, ideal for square or round tubing in automotive and aerospace applications. Compression bending gradually applies pressure for larger-radius curves, often used on rectangular and hexagonal shapes, while roll bending creates gentle arcs through rollers, suited to large structures and architectural designs.

Cold bending is efficient and preserves each tube’s original shape, avoiding deformation. By eliminating heat, it delivers smooth, precise bends and keeps material properties intact, ensuring strong, cost-effective components for various industrial uses.

Applications of Special-shaped Tubes and Pipes

Construction: Special-shaped tubes are commonly used in building frameworks, support structures, and scaffolding. Their geometric shapes provide strength and stability, making them ideal for both residential and commercial buildings.

Automotive: In the automotive industry, these tubes are used for chassis, exhaust systems, and body components. The unique shapes allow for lightweight designs without sacrificing strength, contributing to fuel efficiency and performance.

Aerospace: Oval and rectangular tubes are utilized in aerospace applications for structural components, fuel lines, and hydraulic systems. Their lightweight yet strong characteristics are essential for aircraft performance.

Manufacturing Equipment: In industrial settings, these tubes are used for machinery frames, conveyor systems, and piping systems, providing the necessary strength and flexibility for various applications.

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