Thermo-mechanically Rolled Grades (e.g., S355MLO to S500MLO): Limited to thicknesses up to 120 mm. Quenched and Tempered Grades (e.g., S420QLO to S690QLO):
The keyword refers to the authorized, official digital download of EN 10225-1:2019 , the foundational European standard regulating weldable structural steels for fixed offshore structures (Part 1: Plates) . en 102251 pdf verified