To provide a roll for hot-rolling strip without necessitating so large HIP furnace at the time of executing hot isobaric pressurization(HIP) treatment and also the reliability of the shaft material of a finished roll of which is higher and to provide the manufacturing method therefor.

This invention relates to the roll for hot-rolling strip which has supporting parts 12, 13 which become bearing parts at both ends of a solid shaft material 1 and has an outer layer 2 consisting of high-speed steel system powder which is sintered on the outer periphery in the middle part of the solid shaft material 1 by hot isobaric pressurization and also diffusely joined on the outer periphery in the middle part and its manufacturing method. In its manufacture, a metallic capsule is fixed around the shaft material, the supporting part 12 on the driving side of which is integral with the middle part of the solid shaft material 1, the high-speed steel system powder is filled up into the annual space between the shaft material and the metallic capsule and hot isobaric pressurization treatment is executed to them under a high-temp., high-pressure gas atmosphere. In this way, after sintering the high-speed steel system powder and also diffusely joining it to the solid shaft material 1, the supporting part 13 on the driven side is joined to the solid shaft material 1.