Low-carbon steel sheets temper-rolled after the final anneal to improve magnetic properties

摘要

Low-carbon sheet steel having inproved magnetic properties is produced by hot rolling the steel to about 0.050 to 0.100 inch thick sheet such that the temperature thereof is 1430 DEG to 1620 DEG F when the steel is finished, and 900 DEG to 1200 DEG F when the steel is coiled. The steel is then pickled and cleaned, coldrolled to effect a thickness reduction of 40 to 80 percent, annealed to effect recrystallization, and temper-rolled to effect a plastic elongation of 6 to 10 percent.