Standard of S355NL steel plate: EN10025-3: full name: normalized/normalized rolled weldable fine grain structural steel plate.
Hot-rolled weldable fine grain structural steel products-Part 1: General conditions and EN 10113-2: Products of hot rolled weldable fine grain structural steel. Hot-rolled weldable fine grain structural steels-Part 2: Conditions for normalizing/normalizing rolled steels.
When the temperature of S355NL steel plate is not lower than -20°C, the minimum value of impact energy is specified, expressed by N; when the temperature is not lower than -50°C, the minimum value of impact energy is specified, expressed by NL.
Mechanical properties of S355NL steel plate, strength: tensile strength: RM630-450MPa. Yield strength: 355-275MPa, elongation after fracture 21-22%.
