Hot-rolled steel sheet having excellent drawability and post-processing surface hardness

A hot-rolled steel sheet having a sheet thickness of 2 to 15 mm and having a component composition, by mass, of 0.3% or less of C, 0.5% or less of Si, 0.2 to 1% of Mn, 0.05% or less of P, 0.05% or less of S, 0.01 to 0.1% of Al, and 0.008 to 0.025% of N, with the remainder made up by iron and unavoidable impurities, the solid-solution N being at least 0.007%. In ferrite crystal grains located at the position of depth t/4 (where t is the thickness of the hot-rolled steel sheet), the area ratio of crystal grains within a plane orientation of 10 degrees from the (123) plane is at least 20%, the area ratio of crystal grains within a plane orientation of 10o from the (111) plane is at least 5%, the area ratio of crystal grains within a plane orientation of 10o from the (001) plane is no more than 20%, and the average grain diameter of ferrite crystal grains located at the position of depth t/4 is 3 to 35 mu m.