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Special Shaped Carbon Steel Tube

For projects demanding bespoke structural or fluid conveyance solutions, standard round or square tubing often falls short. This is where the targeted application of Special Profile Carbon Steel Pipe becomes indispensable. These components are engineered to meet precise dimensional and performance specifications that off-the-shelf products cannot fulfill. Whether your design calls for a unique cross-sectional geometry to optimize strength-to-weight ratio or a specific shape to integrate seamlessly into an existing assembly, a Custom Shaped Carbon Steel Tube provides the exact answer. Our manufacturing process specializes in creating these tailored forms, ensuring they deliver the required structural integrity and functionality. In applications involving complex frameworks or specialized machinery, an Irregular Carbon Steel Welded Tube offers the necessary adaptability and resilience. The production of a high-quality Special Shaped Welded Steel Pipe involves advanced techniques to maintain consistency in wall thickness and material properties across the entire non-standard profile, guaranteeing reliable performance under load.


Our Special Shaped Carbon Steel Tube is fabricated from high-grade carbon steel, selected for its excellent mechanical properties, weldability, and cost-effectiveness. The manufacturing begins with premium steel coils or plates, which are formed and welded using precision-controlled processes. This ensures the final product not only matches the exact geometric specifications but also maintains superior internal and external surface quality. Key technical parameters for our Special Shaped Carbon Steel Tube include:

  • Material Grades: Common grades include ASTM A500, A513, A36, and St37, with others available upon request to meet specific mechanical requirements.
  • Production Standards: Manufactured in compliance with ASTM, EN, DIN, and JIS standards, ensuring global acceptability.
  • Shaping Process: Primarily produced through cold forming and high-frequency induction welding (HFIW) or electric resistance welding (ERW) for consistent, high-strength seams.
  • Available Shapes: Beyond standard rectangles and squares, we produce oval, triangular, hexagonal, D-shaped, and fully custom asymmetric profiles.
  • Surface Treatment: Options include black (mill finish), galvanized (zinc-coated), pre-primed, or painted to enhance corrosion resistance and suitability for final application.

The table below outlines the typical dimensional and performance specifications for our standard range of Special Shaped Carbon Steel Tubes.

Parameter Specification Range Notes
Cross-Sectional Dimensions 10mm - 500mm (Major Axis) Custom dimensions beyond this range are negotiable based on design.
Wall Thickness 0.8mm - 12.7mm Thickness is uniform across the profile unless a tapered design is specified.
Length Up to 12 meters (standard), longer lengths possible Can be cut to precise lengths as required.
Tensile Strength 310 MPa - 550 MPa Varies with carbon steel grade and heat treatment.
Yield Strength 230 MPa - 450 MPa A key indicator of structural load-bearing capacity.
Tolerance ±0.5% on dimensions, ±10% on wall thickness Tighter tolerances can be achieved for precision applications.

These tubes undergo rigorous quality control checks, including dimensional verification, visual inspection, hydrostatic or pneumatic pressure testing, and non-destructive testing (NDT) of welds as required. The versatility of the Special Shaped Carbon Steel Tube makes it a fundamental component across numerous sectors, including architectural design for railings and frames, agricultural equipment, automotive roll cages and chassis, industrial machinery framing, and material handling systems.

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