Grades are categorized by their delivery condition and yield strength: : e.g., S355NLO (yield strength of 355 MPa).
The 2019 edition introduced a new naming convention, replacing older designations with systemized codes. en 102251 pdf verified
: Infrastructure driven into the seabed. Grades are categorized by their delivery condition and
: Plates used as the base material for forming larger structural tubes. en 102251 pdf verified
The 2019 update significantly increased the maximum allowable thicknesses for various grades: : Up to 200 mm . MLO (Thermo-mechanical) : Up to 120 mm . QLO (Quenched & Tempered) : Up to 150 mm . 3. Key Requirements and Testing