A method for manufacturing a metal sheet comprising pinching the metal sheet in rapid quenching between a pair of pinch rolls in the range where the temperature of the metal sheet is from (TMs+150) (° C.) to (TMf−150) (° C.), wherein the Ms temperature of the metal sheet is TMs (° C.) and the Mf temperature thereof is TMf (° C.), as well as a rapid quenching unit comprising a pair of pinch rolls capable of use in such a method.