Normalised or normalised rolled, weldable, fine-grain structural steels

BS EN 10025-3:2019

Normalised (or normalised rolled) structural steels are steels that have been heated and cooled to produce a refined grain structure. This may be achieved by reheating the steel to circa 900°C and allowing it to cool (normalised) or by controlling the temperature when rolling (normalised rolled). The normalising process improves material ductility and machinability; however, some normalised grades have higher carbon equivalent values (CEVs); this requires consideration when welding.

Values for minimum elongation after fracture are given for nominal thicknesses ⩽16 mm. Values for maximum CEV are given for nominal product thicknesses ⩽63 mm.

Normalised steels to BS EN 10025-3:2019 are most commonly available as flat products or plates.