Introduction
In modern structural engineering and architectural steelwork, the demand for high-strength, large-dimension hollow sections continues to grow. Seamless square pipes in S355J2H grade, manufactured in accordance with EN 10210-1:2006, offer unmatched structural integrity. These sections provide large-size capability up to 1000 × 1000 × 40 mm (as per EN 10210-1:2006), making them ideal for heavy and critical applications where ERW tubes fall short.
Product Overview
Seamless square hollow sections (SHS) are produced without any welded seam, resulting in uniform strength across the entire cross-section. When manufactured in S355J2H grade, these pipes deliver excellent mechanical properties combined with superior toughness and reliability.
Manufacturing Capability
Maximum Size Capability:
- 1000 × 1000 mm
- Wall thickness up to 40 mm
Mechanical Properties – S355J2H
- Minimum Yield Strength: 355 MPa
- Tensile Strength: 470 – 630 MPa
- Impact Test: 27 J at –20°C
- Elongation: ≥ 22%
- Delivery Condition: Hot Finished
Advantages Over ERW Pipes
- No weld seam – uniform strength
- Superior fatigue and load performance
- Clean aesthetics without tool or weld marks
- Higher reliability for critical structures
Applications
- Heavy structural columns and beams
- Bridges and infrastructure
- Offshore and marine structures
- Power plants and refineries
- Architectural and exposed steelwork
Conclusion
Seamless square pipes in S355J2H grade, manufactured as per EN 10210-1:2006, combine strength, safety, and aesthetics. With size capability up to 1000 × 1000 × 40 mm, they are the preferred solution for high-responsibility structural applications.