Method to monitor a casting element, which includes a crystallizer or an ingot mold, used in continuous casting in a production plant for steel products, comprising at least an installation step in which each casting element (10, 20) is associated with a corresponding casting unit, and at least an operating step in which the casting element (10, 20) is used to produce said steel products by casting molten metal in the crystallizer, wherein the production of said steel products is controlled and supervised by electronic processing and control means, characterized in that said method comprises: - univocally and stably associating memorization means with each specific casting element (10, 20) before or during the installation step, wherein said memorization means comprise an RFID tag of the readable/writable type, operatively connectable to the electronic processing and control means, - memorizing identifying parameters, before the casting element (10, 20) is used, in said RFID tag, - said identifying parameters being read by the electronic processing and control means and used at least to automatically set predetermined functional process parameters at the beginning and/or during the operating step, - wherein said identifying parameters at least comprise data relating to a univocal series number, to a design code, to the radius of curvature, to the sizes of the products that can be made, to the specific material they are made of, to the type of internal lining, - wherein in the RFID tag predetermined functional process parameters are at least memorized relating to the corresponding casting element (10, 20) as detected and/or modified during the operating step and which also comprise at least the date of the first melting, the number of hours in which the molten metal was present in the casting element (10, 20), the number of working sequences, the date of the last melting, the speed of casting, the average speed of casting, - wherein moreover the RFID tag is stably coupled to each crystallizer at the end of its production so as to act as a memorization support for the logistic operations of storage and transport and, in the installation step, before the crystallizer is assembled on the ingot mold and used, the RFID tag is taken from the crystallizer and is assembled on the specific casting unit on one of its lower surfaces, at least partially inside a protection frame. - univocally and stably associating memorization means with each specific casting element (10, 20) before or during the installation step, wherein said memorization means comprise an RFID tag of the readable/writable type, operatively connectable to the electronic processing and control means, - memorizing identifying parameters, before the casting element (10, 20) is used, in said RFID tag, - said identifying parameters being read by the electronic processing and control means and used at least to automatically set predetermined functional process parameters at the beginning and/or during the operating step, - wherein said identifying parameters at least comprise data relating to a univocal series number, to a design code, to the radius of curvature, to the sizes of the products that can be made, to the specific material they are made of, to the type of internal lining, - wherein in the RFID tag predetermined functional process parameters are at least memorized relating to the corresponding casting element (10, 20) as detected and/or modified during the operating step and which also comprise at least the date of the first melting, the number of hours in which the molten metal was present in the casting element (10, 20), the number of working sequences, the date of the last melting, the speed of casting, the average speed of casting, - wherein moreover the RFID tag is stably coupled to each crystallizer at the end of its production so as to act as a memorization support for the logistic operations of storage and transport and, in the installation step, before the crystallizer is assembled on the ingot mold and used, the RFID tag is taken from the crystallizer and is assembled on the specific casting unit on one of its lower surfaces, at least partially inside a protection frame.