STEEL IMPROVED IN DEEP DRAWABILITY, AND PRODUCTION OF STEEL SHEET FOR DEEP DRAWING

摘要

PURPOSE: To produce a steel improved in deep drawability by blending specified ratios of C, Mn, S and Al into iron. ;CONSTITUTION: A steel contg., by weight, ≤0.015% C, 0.15 to 0.25% Mn, ≤0.012% S, ≤0.04% Al, and the balance Fe is prepd. to obtain the steel improved in deep drawability. Moreover, this steel is produced by a converter, and the whole body is subjected to hot rolling in an austentic region, is coiled at a temp. of 650°C, preferably, at a temp. of 700°C and is continuously annealed at a temp. of ≥650°C, preferably, at a temp. of ≤700°C, thereby, the thin steel sheet suitable for a deep drawn vessel can be obtd.;COPYRIGHT: (C)1993,JPO