Method for manufacturing a roll for the hot or cold rolling of flat metal products, wherein the roll comprises a barrel section, which is coated with a wear-resistant layer, and two journals, oriented coaxially with the barrel section, one of which is in each case formed on one of the end faces of the barrel section, comprising the following working steps: a) Provision of a main body blank (3,3a,3b,3c,3d) on which - a barrel section, which has an elongated cylindrical basic form and which consists of a main body material, and - two blank journal sections (4,5) are provided, one of which is in each case formed on one of the end faces of the barrel section and which each have a larger diameter (dZ) than the barrel section, wherein the material volume of the blank journal sections (4,5) is at least equal to the volume of the journal (7,8) of the finished roll associated with the respective end face; b) encasing the barrel section with a tubular-formed jacket, wherein the jacket is connected, with its edge regions associated with the blank journal sections (4,5), in a sealed manner, to the associated end faces (10,11) of the blank journal sections (4,5) and a cavity surrounding the barrel section is formed between the jacket and the barrel section; c) filling the cavity with an alloy powder; d) hot isostatic pressing of the alloy powder in order to form the wear-resistant layer coating the barrel section which forms a substance-to-substance bond with the barrel section from the alloy powder through compression and sintering; e) removing the jacket from the barrel section; f) forming the blank journal sections (4,5) into the journals (7,8); g) finishing of the barrel section and the journals (7,8). a) Provision of a main body blank (3,3a,3b,3c,3d) on which - a barrel section, which has an elongated cylindrical basic form and which consists of a main body material, and - two blank journal sections (4,5) are provided, one of which is in each case formed on one of the end faces of the barrel section and which each have a larger diameter (dZ) than the barrel section, wherein the material volume of the blank journal sections (4,5) is at least equal to the volume of the journal (7,8) of the finished roll associated with the respective end face; - a barrel section, which has an elongated cylindrical basic form and which consists of a main body material, and - two blank journal sections (4,5) are provided, one of which is in each case formed on one of the end faces of the barrel section and which each have a larger diameter (dZ) than the barrel section, wherein the material volume of the blank journal sections (4,5) is at least equal to the volume of the journal (7,8) of the finished roll associated with the respective end face; b) encasing the barrel section with a tubular-formed jacket, wherein the jacket is connected, with its edge regions associated with the blank journal sections (4,5), in a sealed manner, to the associated end faces (10,11) of the blank journal sections (4,5) and a cavity surrounding the barrel section is formed between the jacket and the barrel section; c) filling the cavity with an alloy powder; d) hot isostatic pressing of the alloy powder in order to form the wear-resistant layer coating the barrel section which forms a substance-to-substance bond with the barrel section from the alloy powder through compression and sintering; e) removing the jacket from the barrel section; f) forming the blank journal sections (4,5) into the journals (7,8); g) finishing of the barrel section and the journals (7,8).