This British Standard has been prepared under the direction of the Iron and Steel Standards Policy Committee and is identical to the element of BS 4360 : 1990 covering hot finished structural hollow sections in weather resistant steels. This standard, together with BS 7613, BS EN 10113 : Parts 1 to 3, BS EN 10155 and BS EN 10210-1, supersedes BS 4360: 1990, which is withdrawn. BS 7613 and BS EN 10210-1 are published simultaneously with this standard. Annex A gives a comparison between grades and designations in this standard and those in BS 4360 : 1990.
This British Standard specifies requirements for weldable weather resistant steels for general structural and engineering purposes in the form of structural steel hollow sections conforming to BS 4848 : Part 2 : 1991. However, in the case of hollow sections formed from plate and with the seams metal arc welded, this standard covers only the requirements for the plate material. The products are equally suitable for bolted and riveted structures. This standard applies to material supplied ex-mill or from merchant's stock (see clause 13).
