BS 7668 PDF

BS 7668 – Weldable structural steels. Hot finished structural hollow sections in weather resistant steels. Specification

BS 7668:2016 specifies the technical delivery requirements for weldableweather resistant hot finished seamless, electric welded and submerged arcwelded (longitudinal or helical) steel structural hollow sections of circular,square, rectangular or elliptical forms. It applies to hollow sections formed hotwith or without subsequent heat treatment, or formed cold with a subsequentfull body heat treatment to obtain equivalent metallurgical conditions to thoseobtained in a hot formed product.

The products are equally suitable for welded, bolted and riveted structures. Thehollow sections specified in this British Standard are intended for use inconstruction or for general engineering purposes. Requirements for tolerances,dimensions and sectional properties are specified in BS EN 10210-2.

NOTE Four material grades are specified in this standard and the user should selectthe grade appropriate to the intended use and service conditions.

This British Standard does not apply to products currently covered by,BS EN 10210-1, BS EN 10219-1, BS EN 10219-2 or BS EN 10225. However, thegrades in BS 7668:2016 are compatible with those of similar strength levelspecified in BS EN 10025-5.

In addition to the definitive requirements, this standard also requires the itemsdetailed in Clause 4 to be documented. For compliance with this standard, boththe definitive requirements and the documented items are to be satisfied.

Cross References:
BS EN 287-1
BS EN 1011-1
BS EN 1011-2
BS EN 10021
BS EN 10027-1
BS EN 10052
BS EN 10079
BS EN 10168
BS EN 10204
BS EN 10210-2
BS EN ISO 148-1
BS EN ISO 377
BS EN ISO 2566-1
BS EN ISO 6892-1
BS EN ISO 10893-2
BS EN ISO 10893-3
BS EN ISO 10893-6
BS EN ISO 10893-7
BS EN ISO 10893-11
BS EN ISO 15607
BS EN ISO 15609-1
BS EN ISO 15614-1
BS 6200
BS EN 1993-1-10
BS EN 10020
BS EN 10025-5
BS EN 10210-1
BS EN ISO 9000

All current amendments available at time of purchase are included with the purchase of this document.