Warehouse Steel Structure ERW Steel Pipe EN 10219-1

Under EN 10219-1, structural hollow sections such as S355JRH provide a minimum yield strength of 355 MPa (for thickness ≤16 mm) and tensile strength ranging from 470 to 630 MPa. The material is cold-formed with controlled chemical composition, typically C ≤0.24%, Mn ≤1.60%, and low P and S content to ensure weldability and structural safety. Impact properties comply with the JR requirement (27 J at +20°C), meeting general construction standards.

Huayang produces ERW structural pipes using precision forming and high-frequency welding to achieve consistent weld seam integrity. Online weld seam inspection, dimensional measurement, and mechanical testing are conducted in accordance with EN 10219 requirements. Strict tolerance control on roundness, wall thickness, and straightness ensures efficient fabrication and reliable performance in warehouse steel frames, roofing systems, and column-beam structures requiring long-term stability.