Patent ID: 7534312
Filing Date: 2009-05-19
Classification: C21D,C22C,C23C,C25D

Abstract:
1. A steel sheet excellent in workability, comprising: steel including, in mass, the steel sheet having an increased texture of the {110} orientation resulting in the steel sheet having an average r-value of at least 1.2, an r-value in the rolling direction (rL) of at least 1.3; an r-value in the direction of 45 degrees to the rolling direction (rD) of at least 0.9, and an r-value in the direction of a right angle to the rolling direction (rC) of at least 1.2, wherein the steel sheet having ratios of X-ray diffraction intensities in the orientation components of {111}, {100} and {101} to random X-ray diffraction intensities on a reflection plane at the thickness center of said steel sheet are at least 2.0, at most 1.0 and exceeds 0.2, respectively.