Coil steel is made from slab (mainly continuous casting slab) and heated by roughing mill and finishing mill. Coil steel compared with ordinary construction board, has stronger scratch resistance, is not easy to leave scratches after scraping sharp objects, in addition, because of good weather resistance, and easy to shape, is often used as a substitute for wood.
Because steel coil products have high strength, good toughness, various steel specifications, so the use is also very wide, from the general engineering structure to automobile, bridge, ship, boiler and pressure vessel manufacturing, have been widely used. Different uses, the material performance, surface quality and size of steel plate, shape accuracy and other requirements are also different.