Description

Steel coil- a finished steel product such as sheet or strip which has been wound or coiled after rolling.
Hot-rolled coil is produced from semi-finished products , which are reduced to certain thicknesses by rolling and annealing and wound into a roll. Hot-rolled steel is used e.g. for the manufacture of pipes, steel doors and tanks or is further processed into cold-rolled steel.
Cold-rolled sheet in coil form is produced by removing rust from hot-rolled sheet by "pickling" it in a weak acid solution, then washing, brushing, drying, oiling and unrolling the sheet and finally performing cold-rolling by passing the sheet through a reducing mill under pressure and winding it into a roll. Cold-rolled steel is a more highly finished product and has a smoother surface, greater dimensional accuracy (thickness, width, length) and greater strength. Much cold-rolled steel is processed in the automotive industry, but some is also used in the manufacture of household goods.

Product parameters