(57) The present invention provides rolled steel having few inclusion defects suitable for steel sheets used for automobiles, steel sheets used for deeply drawn cans and steel pipes, the basic composition of which is C: 0.0002 to 0.7 mass %, Si: 0.001 to 0.5 mass %, Mn: 0.005 to 2.0 mass %, P: 0.001 to 0.05 mass %, S: 0.0005 to 0.15 mass %, Ti: 0.001 to 0.25 mass % and dissolved Al: 0.001 to 0.1 mass %, the selective composition of which is Ca: not more than 50 ppm and Mg: not more than 50 ppm, at least one of Ca and Mg being contained, wherein created oxide inclusions are mainly composed of one of the crystallized phase, the principal component of which is titanium oxide, and the crystallized phase, the principal component of which is alumina, and further composed of at least one of the crystallized phase, the principal component of which is CaO, and the crystallized phase, the principal component of which is MgO, and the crystallized phases of oxide inclusions exist in steel.