| 摘要 |
Provided are: a hot-rolled steel sheet for producing a full hard cold-rolled steel sheet that has high strength and little variation in sheet thickness; a method for producing said hot-rolled steel sheet; and a full hard cold-rolled steel sheet produced by using said hot-rolled steel sheet. This hot-rolled steel sheet comprises: a component composition including, in mass%, from 0.06% to 0.18% C, less than 0.3% Si, from 1.8% to 3.2% Mn, less than or equal to 0.03% P, less than or equal to 0.005% S, less than or equal to 0.08% Al, from 0.0010% to 0.0070% N, and Fe and inevitable impurities as the remainder; and a steel structure in which the average aspect ratio of ferrite grains is greater than or equal to 3.0. |
