H-shaped steel is an efficient and economical section profile. Because of its reasonable cross-sectional shape, it can enable stainless steel materials to perform better and enhance load-bearing capacity. Different from the ordinary I-shaped steel, the flange of the H-shaped steel is widened, and the inner and outer surfaces are generally parallel, which makes it easy to connect with other components with high-strength bolts. Its size constitutes a reasonable series with complete models, which is convenient for design and selection.
The flanges of H-shaped steel are all of equal thickness, with either rolled sections or combined sections composed of three plates welded together. I-beams are all rolled sections. Due to poor production technology, the inner edge of the flange has a slope of 1:10. The rolling of H-shaped steel is different from that of ordinary I-shaped steel, which only uses a set of horizontal rollers.
Because its flange is wide and has no slope, a set of vertical rollers must be added to perform rolling at the same time. Therefore, its rolling process and equipment All are more complex than ordinary rolling mills. The maximum height of rolled H-shaped steel that can be produced in China is 800mm. If it exceeds the height, it can only be welded and combined.
