A method and an arrangement for manufacturing rolled wire sections and round steel sections in coils from carbon steels or high-grade steels. The arrangement includes a wire production line with a multiple-stand wire mill and a round steel production line with, for example, a multiple-stand round steel mill which branches from a common billet supply line including a billet furnace and a cooling bed, wherein the wire mill and the round steel mill are arranged next to each other. An aftertreatment unit following the production lines includes a coil forming station for round steel sections and for wire sections arranged following one of the two production lines, a transfer device for wire coils to the round steel production line, a coil forming device for wire sections arranged at the end of the wire mill, the coil forming device being followed by a transfer device for wire coils or round steel coils, and a coil conveying and cooling device arranged following one of the two production lines.