Abstract: A method for producing a nitrided steel part in which a semi-finished blank made of nitriding steel is produced from a blank or a steel bar and in which a reinforcing treatment is carried out on the semi-finished blank thus obtained, the method including a preliminary heat treatment in which the blank or steel bar from which said semi-finished blank is obtained is heat-treated beforehand. The preliminary heat treatment includes a hardening treatment by a heating which ensures austenitization of the steel and a tempering treatment at a temperature between 200° C. and 650° C. A surface induction hardening is performed on the semi-finished blank prior to a step of shallow nitriding, the step of shallow nitriding being carried out for a period of less than 250 hours, at a temperature of between 400° C. and 600° C.