Structural steels — Part 5: Technical delivery conditions for structural steels with improved atmospheric corrosion resistance

This document specifies qualities for flat and long products of hot-rolled structural steels with improved atmospheric corrosion resistance in the as-rolled, normalized/normalized rolled, thermomechanical control processed and quenched and tempered delivery conditions. It is applicable to steel plates rolled on a reversing mill, wide flats, hot-rolled sections and bars, which are intended for use in welded or bolted structures.

This document covers 14 grades and 5 qualities. Grades S235, S295, S355, S420, S460, S500 and S550 are covered in Annex A. Grades SG245, SG345, SG365, SG400, SG460, SG500, and SG700 are covered in Annex B. Not all grades are available in all qualities, and some qualities have Charpy V-notch requirements.

The steels specified in this document are applicable to hot-rolled plates, wide flats, sections and bars with a maximum nominal thickness of 150 mm for grades S235W, S295W, S355W, S420W, S460W, S500W and S550W, with a maximum nominal thickness of 200 mm for grades SG245, SG345, SG365, SG400, SG460, SG500, and SG700.

The steels specified in this document are applicable to hot-rolled plates with a maximum nominal thickness of 20 mm for grades S295WP and S35