| 摘要 |
A hot-stamp-molded article according to the present invention comprises specific chemical components, wherein the relationship represented by the formula: (5×[Si]+[Mn])/[C] > 10 is satisfied in which [C], [Si] and [Mn] respectively represent the contents, in mass%, of C, Si and Mn, a ferrite and a martensite are contained respectively at area ratios of 40 to 95% inclusive and 5 to 60% inclusive, the sum total of the area ratio of the ferrite and the area ratio of the martensite is 60% or more, at least one of a pearlite at an area ratio of 10% or less, a retained austenite at a volume ratio of 5% or less and a bainite at an area ratio of less than 40% may be contained, the hardness of the martensite as measured on a nano indenter satisfies both a relationship represented by the formula: H2/H1 < 1.10 and a relationship represented by the formula: σHM < 20, and a TS×λ value, which is a product of a tensile strength (TS) and a hole expansion ratio (λ), satisfies 50000 MPa·% or more. |
