BS EN 10025-6:2004+Amendment 1:2009 Hot rolled products of structural steels. Technical delivery conditions for flat products of high yield strength structural steels in the quenched and tempered condition
BS EN 10025-6:2004 + Amendment 1 (along with BS EN 10025-1) is an indispensable guide to those who specify, purchase or supply steel, of the standard purchase specifications and delivery conditions for flat products of high yield strength alloy special steels supplied in the quenched and tempered condition.
BS EN 10025-6 is the European standard prepared under Mandate M/120 given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of the EU Construction Products Directive (89/106/EEC).
“Hot forming” was reworded due to the publication of CEN/TR 10347:2006 which had been prepared by the experts in high strength steels of ECISS/TC 10, CEN/TC 135 and CEN/TC 250/SC 3. Hot forming is not recommended for quenched and tempered steels, as the necessary heat treatment after hot forming is very difficult to reproduce.
This European standard, a part of the BS EN 10025 series, specifies requirements for flat products of high yield strength alloy special steels. The grades and qualities are provided in chemical composition tables and mechanical properties tables and are supplied in the quenched and tempered condition.
The steels specified in BS EN 10025 are applicable to hot-rolled flat products with a minimum nominal thickness of 3 mm and a maximum nominal thickness ≤ 150 mm for grades S460, S500, S550, S620 and S690, a maximum nominal thickness ≤ 100 mm for grade S890 and a maximum nominal thickness ≤ 50 mm for grade S960, in steels which, after quenching and tempering, have a specified minimum yield strength of 460 MPa to 960 MPa.
Part 6 of this document, in addition to part 1, specifies requirements for flat products of high yield strength alloy special steels. The grades and qualities are given under ‘chemical composition’ and ‘mechanical properties’ and are supplied in the quenched and tempered condition.
