process for the production of a cold-rolled sheet or strip and the tiefziehn suitable cold rolled sheet or tape and its use

摘要

In order to produce sheet possessing good forming properties, in particular for rotationally symmetrical deep-drawing, a low-carbon steel containing not more than 0.009 % N is alloyed with 0.01 to 0.04 % Ti and in certain cases with 0.01 to 0.06 % Nb and continuously cast. The plate slabs are heated to a temperature above 1120 degrees Celsius, rolled to obtain a hot strip above the Ar3 point, and wound at 520 ± 100 degrees Celsius. After cold rolling to the desired fine sheet thickness, the steel strip is annealed by recrystallization, skin-passed and made into sheets.