Good quality of quenching and tempering steel bs en10025-6 s550q S550q is in the standard of bs en10025-6 . Bs en10025-6 main series steel grades includes the following : s460q, s460ql, s460ql1, s500q, s500ql, s500ql1, s550q, s550ql, s550ql1, s620q, s620ql, s620ql1, s690q, s690ql, s690ql1, 0ql, s960ql1 steel. Moq: 1 pc Delivery time : promptly ( stock) or 10-40 days (production) Dimension range:2mm -280mm x 1000mm-4000mm x 1000mm-18000mm . Stock : some are available Mtc: available Payment term : t/t or l/c at sight