{"id":294215,"date":"2024-10-19T20:00:01","date_gmt":"2024-10-19T20:00:01","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bsi-20-30399843-dc-2020\/"},"modified":"2024-10-25T17:13:14","modified_gmt":"2024-10-25T17:13:14","slug":"bsi-20-30399843-dc-2020","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bsi-20-30399843-dc-2020\/","title":{"rendered":"BSI 20\/30399843 DC 2020"},"content":{"rendered":"

This document specifies requirements for flat and long products of hot-rolled weldable fine-grain structural steels in the as-rolled (for SG grades only), normalized\/normalized rolled and thermomechanical processed delivery conditions. It applies to steel plates rolled on a reversing mill, wide flats, hot-rolled sections and bars, which are intended for use in heavily loaded parts of welded or bolted structures.<\/p>\n

This document covers 13 grades and 6 qualities. Grades S275, S355, S390, S420, S460 and S500 are covered in Annex A<\/span>. Grades SG245, SG290, SG325, SG345, SG365, SG415 and SG460 are covered in Annex B<\/span>. Not all grades are available in all qualities, and some qualities have Charpy V-notch requirements.<\/p>\n

The steels specified in this document are applicable to hot-rolled plates, wide flats, sections and bars with a minimum nominal thickness of 3 mm and a maximum nominal thickness of 250 mm for grades S275N, S355N, S390N, S420N and S460N, a maximum nominal thickness of 150 mm for grades S275M, S355M, S390M, S420M, S460M, and S500M, a maximum nominal thickness of 200 mm for grades SG245, SG325 and SG415, a maximum nominal thickness of 100 mm for grades SG345, SG365 and SG460, and a maximum nominal thickness of 40 mm for grades SG290.<\/p>\n

This document does not include the following structural steels, some of which are covered by other International Standards:<\/p>\n