| 摘要 |
It is an object of the invention to provide a steel which is suitable for continuous annealing of hot and cold strip. This object is achieved by a relatively high strength dual phase steel for a cold-or hot-rolled steel strip having excellent forming properties, in particular for light vehicle construction, comprising the elements indicated in claim 1, balance iron including customary steel-accompanying elements with optional addition of Ti, with the required dual phase microstructure being produced during continuous annealing and the cold-or hot-rolled steel strip being heated to a temperature in the range from 820 to 1000‹C, preferably from 840 to 1000‹C, in the continuous annealing furnace in a single-stage process and the annealed steel strip subsequently being cooled from the annealing temperature at a cooling rate of from 15 to 30‹C/s. ® KIPO & WIPO 2009
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