Carbon Steel Round Tube for Structural Scaffolding

Reliable structural scaffolding is the backbone of any safe and efficient construction or maintenance project. The choice of material for the primary load-bearing components is not a place for compromise. Our high-performance Carbon Steel Round Tube for Structural Scaffolding is engineered to provide the optimal balance of strength, durability, and cost-effectiveness. We offer both Seamless Carbon Steel Round Tube for maximum pressure integrity and uniformity, and high-frequency ERW Carbon Steel Round Pipe known for its excellent dimensional accuracy and concentricity. All our products are manufactured to rigorous international standards, including ASTM A53 Carbon Steel Round Tube for general structural and mechanical applications, and the higher-grade ASTM A106 Grade B Round Pipe for elevated temperature service, ensuring your scaffolding system meets and exceeds all necessary safety and performance criteria.


The superior performance of our Carbon Steel Round Tube for Structural Scaffolding stems from meticulous manufacturing control and premium raw materials. The inherent strength of carbon steel provides exceptional load-bearing capacity, allowing for taller, more stable scaffold structures that can support workers, equipment, and materials with unwavering reliability. Furthermore, the consistent roundness and straightness of our tubes ensure perfect fit and easy assembly with standard couplers and fittings, drastically reducing on-site installation time and labor costs. A key advantage of using our product is its excellent weldability, facilitating secure and permanent joints when required. To protect against environmental corrosion during storage and use, we offer various surface finishes, including black (mill scale), galvanized, or painted coatings, significantly extending the service life of your scaffolding investment and reducing long-term maintenance expenses.

Key Specifications & Material Properties

  • Material Grade: ASTM A53 Grade B, ASTM A106 Grade B, S235JR, S355JR, or equivalent.
  • Manufacturing Process: Seamless (SMLS) or Electric Resistance Welded (ERW).
  • Standard Sizes (OD): 48.3mm (1.9"), 60.3mm (2.375"), 76.1mm (3"), 88.9mm (3.5").
  • Wall Thickness: Range from 2.5mm to 6.0mm, depending on diameter and load requirement.
  • Length: Standard random lengths 5.8m to 6.2m, or cut-to-length as specified.
  • Yield Strength: Minimum 240 MPa (A53 Gr. B) up to 415 MPa (high-strength grades).
  • Tensile Strength: Minimum 415 MPa, ensuring high structural integrity.
  • Surface Treatment: Black (as-rolled), hot-dipped galvanized, or primer painted.
Outer Diameter (mm) Wall Thickness (mm) Approx. Weight per Meter (kg/m) Common Standard Typical Scaffolding Application
48.3 3.2 3.56 BS EN 39, ASTM A53 Standard Ledger, Transom
48.3 4.0 4.37 BS EN 39, ASTM A53 Heavy-duty Standard, Brace
60.3 3.2 4.50 BS EN 39, ASTM A53 Heavy-duty Ledger, Guardrail
60.3 4.0 5.55 ASTM A53, ASTM A106 Main Frame Upright
76.1 4.0 7.11 ASTM A53, BS EN 39 Heavy-duty Frame, Shoring
88.9 4.0 8.38 ASTM A53, ASTM A106 Cuplock System Standards, Heavy Shoring

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