Abstract: A method for manufacturing a steel sheet, including annealing a steel raw material having an Si content of 1.0 mass % or more and a Cr content of 1 mass % or less, under a condition satisfying: a following formula 1A if the Cr content of the steel raw material is 0.2 mass % or more and 0.6 mass % or less: 0.19 ? exp ? ( - 10770 T + 273 ) * t ? 0.75 Cr [ % ] + 0.48 Formula ? 1 ? A a following formula 1B if the Cr content of the steel raw material is less than 0.2 mass %: 0.19 ? exp ? ( - 10770 T + 273 ) * t ? 0.63 Formula ? 1 ? B or a following formula 1C if the Cr content of the steel raw material is more than 0.6 mass % and 1.0 mass % or less: 0.19 ? exp ? ( - 10770 T + 273 ) * t ? 0.93 Formula ? 1 ? C where in the formulas 1A, 1B, and 1C, T is 500° C. or higher and a soaking temperature (° C.

Abstract: To provide a galvanized steel sheet for hot pressing which can achieve heating for suppressing the occurrence of LME cracks in a short time during a hot pressing process, and a method of manufacturing a hot press-formed product obtained by performing hot pressing using the galvanized steel sheet. Disclosed is a galvanized steel sheet for use in hot pressing, including a galvanized layer and a base steel sheet, wherein internal oxide is present on a side of the base steel sheet from an interface between the galvanized layer and the base steel sheet, the base steel sheet including defined C, Si, Mn, and Cr, with the balance being iron and inevitable impurities, wherein the base steel sheet satisfies the following formula (1): (2×[Si]/28.1+[Mn]/54.9+1.5×[Cr]/52.0)?0.05??(1) wherein, in the formula (1), [Si] represents a Si content in mass % of the base steel sheet, [Mn] represents a Mn content in mass % of the base steel sheet, and [Cr] represents a Cr content in mass % of the base steel sheet.

Abstract: A method for manufacturing a press-formed article, said method comprising forming a galvanized steel sheet or an alloyed hot-dip galvanized steel sheet by hot press forming, wherein, after heating the steel sheet and holding the same, the forming is started at a temperature of 680-750° C. inclusive, while allowing liquid zinc to remain on the surface of the steel sheet, and the forming is performed while regulating the strain rate in a plastic deformation part of the steel sheet to 0.5 sec?1 or lower.

Abstract: A method for manufacturing a press-formed article, said method comprising forming a galvanized steel sheet or an alloyed hot-dip galvanized steel sheet by hot press forming, wherein, after heating the steel sheet and holding the same, the forming is started at a temperature of 680-750° C. inclusive, while allowing liquid zinc to remain on the surface of the steel sheet, and the forming is performed while regulating the strain rate in a plastic deformation part of the steel sheet to 0.5 sec?1 or lower.