BSi Steel distributes Steel Plates that are produced from continuously cast slabs on a 4-high reversing mill cooled on cooling beds and then leveled and sheared to ordered size. To achieve superior mechanical properties, plates can be heat-treated, that is normalized or quenched and tempered. For structural and lower grade pressure vessel steels the thickness of the plate varies from 4.5mm to 100mm. Once the slabs are produced, surface defects are removed from slabs either by in-line scarfing machines or by hand-treating by means of scarfing with an oxygen-gas torch.