PRODUCTION OF HIGH CHROMIUM COLD ROLLED STEEL STRIP EXCELLENT IN RIDGING RESISTANCE AND WORKABILITY AND PRODUCTION OF HOT ROLLED STEEL STRIP FOR THE SAME STOCK

摘要

PURPOSE: To provide a method for producing a high chromium cold rolled steel strip (including steel sheet) small in the generation of ridging and excellent in workability. ;CONSTITUTION: The continuously cast slab of a high chromium steel contg., by weight, 0.01 to 0.08% C, 0.1 to 0.5% Si, 0.4 to 1% Mn, 15 to 19% Cr, 0.25% Ni, 0.25% Mo, 0.25% Cu, 0.25% V, 0 to 0.01% sol.Al and 0.005 to 0.08% N is subjected to hot rolling under the conditions of 1100 to 1250C heating temp., 650 to 780C hot rolling finishing temp. and 65C coiling temp. to obtain a hot rolled steel strip, and this steel strip is subjected to annealing under the annealing conditions of 700 to 800C annealing temp. and 0.1 to 8min annealing time, is subjected to pickling and is subjected to cold rolling and annealing- pickling.;COPYRIGHT: (C)1996,JPO