Tapered Flange Channels, rolled steel channel Or RSC is another popular profile among the architectural and structural steel industry. Available in grade S235 and S355 Tapered channel is praised for their increased strength and durability. Typically used as columns or as support for floor joists and Highly desirable load bearing profile. Typically used in conjunction with steel beams rjs steel beams, universal columns and all forms of structural steel. Full ‘cut to size’ service available on all sections with the option of shot blast and primer painting (red oxide).