Description

STRUCTURAL STEEL PIPES (Circular Hollow Sections – CHS)

Structural steel pipes (Circular Hollow Sections – CHS) are indispensable structural elements across civil engineering, industrial fabrication, and architectural design. Manufactured via high-frequency longitudinal electric resistance welding (ERW) in compliance with EN 10219 (structural grades S235, S275, S355), they deliver exceptional multidirectional strength. The radial symmetry guarantees uniform moment of inertia and outstanding torsional rigidity.

Key Features & Advantages

• Uniform Multidirectional Resistance: Symmetrical circular cross-section ensures constant strength across all radial axes, making it highly effective against buckling, axial compression, and torsional loads.

• Reduced Aerodynamic Drag: The smooth curved surface exhibits a low drag coefficient against wind forces, optimizing it for tall masts, open frames, and exposed offshore or onshore canopies.

• Superior Workability & Fabrication: Excellent structural weldability, clean machine cutting, bending, and punching capabilities streamline both shop fabrication and field erection.

• Corrosion Resistance Options: Available in bare black steel (ready for priming/painting) as well as hot-dip galvanized finish for long-term outdoor rust resistance.

Specifications & Sizing

• Outside Diameter (OD): Ranging from 1/2″ (21.3 mm) up to 12” (323.9 mm) and larger.

• Wall Thickness (WT): Ranging from 1.5 mm to 8.0 mm + for heavy structural duties.

• Length: Standard commercial lengths of 6 meters (custom cut-to-length service available).

Common Applications

• Roof trusses, space frames, primary columns, and secondary architectural framing.

• Commercial greenhouse structures, agricultural sheds, carports, and solar panel racking frames.

• Balustrades, staircase handrails, pedestrian safety barriers, and fence framework.

• Scaffolding systems, lighting poles, antenna towers, and road signage gantries.