S275J0H EN 10210-1 grade S275JOH carbon steel seamless pipe 1.0149 hollow sections material

S275J0H (1.0149) carbon steel seamless pipe complies with EN 10210-1 standard, with carbon content ≤0.20%, manganese ≤1.50%, yield strength ≥275MPa, tensile strength 430-580MPa, and high rigidity and fatigue resistance. It is suitable for bridge trusses and offshore platform support structures. It has excellent low-temperature toughness, with a 0℃ impact energy of ≥39J, meeting the dynamic load requirements in harsh environments, and has passed CE certification to adapt to building curtain walls and mechanical frame welding.

S275J0H hollow section adopts cold forming process combined with controlled rolling treatment, with an outer diameter tolerance of ±1%, a wall thickness deviation of -10%, a surface oxide layer thickness of ≤ 5μm, and argon arc welding process to ensure the uniformity of the weld seam. The EN 10210-1 standard requires delivery in a normalized or controlled rolling state to ensure organizational uniformity and corrosion resistance, and is widely used in sports hall trusses, station ceilings, and energy equipment pipeline systems.