A textural analysis was carried out to explain the cause of the planar anisotropy of r-value
of cold rolled plain extralow-carbon steel sheets. For a detailed analysis, a model for
calculating r-values from ODF-data of texture was applied and the influence of each or a
group of crystal orientations of the recrystallization texture on the planar anisotropy of
r-values was studied. The following results were obtained:A development of {111}〈110〉−{443}〈110〉−{332}〈110〉−{221}〈110〉 enhanced the V-type
planar anisotropy of r-values. A decrease in the intensity of these orientations by
increasing the cold rolling reduction or the refinement of the hot band microstructure
reduced the r-values in L and C directions and hardly affected the r-value in D direction,
and as a result, the V-type planar anisotropy of r-values was improved. On the other
hand, an increase in the intensity of {111}, {334} orientation by increasing the cold rolling
reduction or the refinement of the hot band microstructure raised r-values in sequence of
L < D < C
directions and contributed to the reduction of V-type planar anisotropy of r-values as a whole.
