... 16-270mm with chamfering and straightness Article: Hot rolled steel round bar Grade:S45CB, 20Cr, SCM440, SCM420 as customized.Size:16 ... 3MT per bundle, in bulkAplication of Hot Rolled Steel Round Bar: The products are widely used in machinery making, autombile ... , petoleum machinry, agricultural machinery and civil archtectue such as all kinds of shafts, screws, connecting rods, hardware tools, gears ...