Hot Rolled Coil Sheet; Flat steels in the form of rolls or sheets with thicknesses varying between 1.50-20.00 mm and obtained by hot rolling in the hot rolling mill of the rectangular cross-section semi-product, called slab, which is formed as a result of the solidification of liquid steel by continuous casting method, and 5.00 -200.00mm. They are plate-shaped flat steels with a thickness between 1.000-3.800 mm and a width between 1.000-3.800 mm.