Casting

The steel is cast into ingots; these are either heated in a furnace and rolled down to a slab,or more commonly continuously cast into a slab. Slabs byeither casting process are typically 8–10in (200–250mm) thick,ready for further rolling. These slabs are reheated prior to rolling in a computer-controlled continuous hot strip mill to a strip around twice the thickness required for body panels. The strip is closely wound into coil ready for further processing.Car Repair Talk's forum.