Cold-rolled flat steel product for deep-drawing applications and method for the production thereof

The invention relates to a cold-rolled flat steel product for deep-drawing applications made from a steel which, in addition to Fe and unavoidable impurities, contains (in wt%) C: 0.008 - 0.1%, Al: 6.5 - 12%, Nb: 0.1 - 0.2%, Ti: 0.15 - 0.5%, P: < 0.1%, S: < 0.03%, N: < 0.1%, and optionally one or more elements from the group "Mn, Si, REM, Mo, Cr, Zr, V, W, Co, Ni, B, Cu, Ca, N," with the stipulation that Mn: < 1%, REM: < 0.2%, Si: < 2%, Zr: < 1%, V: < 1%, W: < 1%, Mo: < 1%, Cr: < 3%, Co: < 1 %, Ni: < 2%, B: < 0.1%, Cu: < 3%, Ca: < 0.015%. The following applies to the ratio %Ti/%Nb, wherein %Ti = the Ti fraction and %Nb = the Nb fraction: 2.5 > %Ti/%Nb >= 1.5. In order to produce such a flat steel product, a correspondingly composed steel is cast into a pre-product, which is then hot-rolled into hot-rolled strip at a final hot-rolling temperature of 820 - 1000 DEG C. The hot-rolled strip is then wound at a winding temperature of up to 750 DEG C, annealed at an annealing temperature of >650 - 1200 DEG C over 1 - 50 h after the winding, then cold-rolled into the cold-rolled flat steel product at a total degree of cold-rolling of >= 65% in one or more stages, and finally is subjected to final annealing at 650 - 850 DEG C.