Steel Billets, Bars, Rods | Britannica
In rolling bars, a billet measuring, for instance, 120 millimetres square and five metres long is heated in pusher or walkingbeam furnaces to 1,200° C. Τhere is a great variety of layouts used in barrolling mills. In principle, after removal of the furnace scale by water jets, a primary reduction takes place in several passes through roll ...