Steel sheet for hot stamping and hot-stamped member

A steel sheet for hot stamping comprising, on the whole of at least one surface of the steel sheet,

• a surface-treated film whose emissivity at a wavelength of 8.0 μm at 25° C. is 60% or more, wherein:
• the surface-treated film contains carbon black, and one or more of a Zr oxide, a Zn oxide, and a Ti oxide, in which the carbon black and the oxides exist while being dispersed over the entire surface-treated film;
• the surface-treated film has a silica content of 0 to 0.3 g/m2;
• when an adhesion amount of the carbon black and an adhesion amount of the oxides are set to XCB (g/m2) and XOxide (g/m2), respectively, an equation (1) below is satisfied,
• 118.9≤24280/{6700/(100+76×XCB)+18000/(130+65×XOxide)}≤332.0 Equation (1), and
• on one side or both sides of the steel sheet for hot stamping, a metal-plated layer is provided between a base material of the steel sheet and the surface-treated film,
• wherein the metal-plated layer is aluminum plating, or Al—Si plating.