What is a rolled steel section?

a metal part produced by rolling and having any one of a number of cross-sectional shapes. The first category includes rolled sections of section steel that are shaped like circles, rectangles, squares, ovals, hexagons, or segments of these, and other simple geometric figures.

It also includes shaped sections that are combinations of simple sections, such as angular rolled sections, I beams, bands for the wheel rims of motor vehicles, grates, and wheel lugs; sheets and pipes, such as square, rectangular, rhomboid, oval, and special pipes; and bent shapes. The second category includes stepped sections, and the third category includes tires, wheels, gears, spheres, and gilled tubes.