Method for manufacturing ring-rolled product

A method for manufacturing a ring-rolled product, the method forming a ring-rolled product from a ring material by using a mandrel roll and a main roll, the mandrel roll and the main roll being configured so as to contact inner and outer circumferential surfaces of the ring material respectively in a state in which the ring material is rotated in a circumferential direction thereof, the mandrel roll and the main roll being configured so as to press the ring material in a radial direction thereof, comprising:

• a step of rolling the ring material, this step including an operation of induction-heating a contact portion of a circumferential surface of the main roll which contacts the outer circumferential surface of the ring material by at least one induction heating element to a temperature of not less than 100 degrees C. and less than the softening temperature of a material of the main roll, and rolling the ring material between the mandrel roll, and the main roll which is induction-heated.