Abstract: A channel section for a scraper-chain conveyor is constituted by a pair of sigma-shaped side walls, and a floor plate welded to the central flanges of the side walls. The sigma-shape of the side walls define V-shaped grooves in the side walls, each of these grooves being defined by a pair of outwardly-divergent inclined wall portions. Each end zone of each side wall is provided with a coupling element for coupling the channel section to an adjacent similar channel section. Each of the coupling elements is welded into a cut-away part formed at the adjacent end zone of the respective inclined wall portions. The coupling elements are provided with recesses for the reception of a connector such as a toggle bolt connector. Each of the side walls is provided with elongate stiffening members welded thereto adjacent to the upper and lower flanges respectively. The coupling elements protrude outwardly beyond their side walls as far as the outer edges of the stiffening members.