Structural steels are carbon-manganese steels with guaranteed minimum mechanical properties (yield strength and tensile strength) and with satisfactory ductility, and are suitable for most common applications. They are readily available from distributors in the most common forms and dimensions.

Delivery conditions proposed: AR (as rolled) or N (normalised) – for thicknesses below 60 mm, normalising treatment may be replaced by a normalising rolling process.

Structural steels offer good weldability with all conventional welding processes. In most cases pre- or post-heat treatment is not necessary. In addition to their excellent mechanical properties, structural steels have satisfactory toughness values.

Structural steels are mainly used in the building industry and in mechanical engineering. Applications include building components, containers, storage tanks and roll formed profiles.

Since 1 July 2013, the Construction Products Regulation (Regulation (EU) No. 305/2011 – CPR) has required that CE marking be affixed to all products delivered in accordance with a harmonised standard (e.g. EN 10025). This CE marking guarantees, for the uses defined in the standard, the properties described in the declaration of performance submitted by the manufacturer.

All of the steels in this data sheet comply with this Regulation.

The corresponding declarations of performance are available on our website at:

http://dop.arcelormittal.net/index.php

Options available (after prior agreement):

• Chemical adjustment to improve CEV or to modify copper content
• Transversal impact test
• Improved deformation properties perpendicular to the surface of the product as per EN 10164 (Z test) (for J2, J2+N, K2, K2+N grades)
• Ultrasonic testing
• Suitability for cold forming (option 11 - EN 10025-2:2004), for all steel grades, thickness 6-30 mm
• Suitability for hot dip galvanising
• Other options specified in the standard
• Grades corresponding to ASTM or ASME are available as well

For the dimensions available, see Table A in data sheet H99. Thickness is limited to 150 mm for S235J2 & S275J2, 120 mm for S355J2/K2, in +N delivery conditions.