HOT-ROLLED STEEL SHEET AND PRODUCTION METHOD THEREFOR, COLD-ROLLED STEEL SHEET AND PRODUCTION METHOD THEREFOR, PRODUCTION METHOD FOR COLD-ROLLED ANNEALED STEEL SHEET, AND PRODUCTION METHOD FOR HOT-DIP GALVANIZED STEEL SHEET

The present invention provides a cold-rolled steel sheet that exhibits excellent surface properties after press work while having high contents of Mn and P. The cold-rolled steel sheet according to the present invention has a prescribed component makeup comprising 0.2-2.0% of Mn and 0.005-0.060% of P. When [delta]Sm and [delta]Wm are calculated for each local maximum value in a width-direction profile of a Mn segregation degree Sm in the center part of sheet thickness, the average value and the standard deviation 2[sigma]m of [delta]Sm where [delta]Wm becomes at least 200 [mu]m are at most 0.10 and at most 0.05, respectively. Here, Sm equals Mn concentration (%) at an arbitrarily defined point / average Mn concentration (%) in the steel sheet; [delta]Sm is the difference between a local maximum value of Sm and an average value of two local minimum values adjacent to said local maximum value; and [delta]Wm represents the width-direction distance between two local minimum values adjacentto each local maximum va