Patent ID: 7658807

Claim:
A method for producing a hot strip the method comprising the following working steps: melting a steel with the following composition in % by weight: C: <0.02% Mn: ≦1.2% Si: 0.1-4.4% Al: 0.1-4.4%; wherein the sum formed from the Si content and twice the Al content is <5%, P: <0.15% Sn: ≦0.20% Sb: ≦0.20%, the remainder iron and unavoidable impurities, to form a steel melt; casting the steel melt to form thin slabs; continuous hot-rolling the thin slabs at a temperature of the thin slabs following the casting of the steel, the continuous hot rolling comprising a plurality of passes; and wherein at least one pass of the hot-rolling is carried out at temperatures at which the hot strip consists of an austenitic structure, and a plurality of subsequent passes of the hot-rolling are carried out at temperatures in which the hot strip consists of a ferritic structure.