Method for producing a hot-rolled strip

A method for producing a hot strip (W) which strip is produced in particular from continuous casting in the shape of reheated slabs or slabs obtained directly from the casting heat, from thin slabs or cast strip, based on a steel comprising (in mass %)

• C:
• 0.001-1.05%;
• Si:
• ≦1.5%;
• Mn:
• 0.05-3.5%;
• Al:
• ≦2.5%;
• as well as optionally one or several of the following constituents
• Cu, Ni, Mo with an amount of ≦0.8%;
• N, Ti, Nb, V, Zn, B with an amount of ≦0.5%;
• P with an amount of ≦0.09%;
• Cr with an amount of ≦1.5%;
• and/or
• S with an amount of ≦0.02%;
• and
• the remainder being iron as well as the usual accompanying elements, with the steel also optionally having been treated in the liquid phase with Ca or Ca carrier alloys, involving the following steps:
• continuous finish rolling of the hot strip (W);
• continuous cooling of the hot strip (W) in at least two subsequent cooling phases (tCK, tLK) of accelerated cooling, to a final temperature;
• with the first cooling phase of (tCK) of accelerated cooling starting at the latest three seconds after the last pass of finish rolling;
• and
• with the hot strip (W) during the first cooling phase (tCK) of accelerated cooling rate of at least 250° C./s.