The flanges of the H-beam are parallel or nearly parallel on both sides, with the end of the flanges forming a right angle, hence the name Parallel Flange Beam. The web thickness of the H-beam is smaller than that of a regular I-beam of the same height, and the flange width is greater, leading to the alternate name Wide Flange Beam. Due to its shape, the H-beam has significantly higher cross-sectional modulus, moment of inertia, and strength compared to a regular I-beam of the same weight. Used in various metal structures to withstand bending moments, pressure loads, and eccentric loads, it demonstrates superior performance, greatly enhancing load-bearing capacity and saving 10% to 40% of metal. The wide flanges, thin webs, and versatile sizes of the H-beam make it adaptable for various truss structures, saving 15% to 20% of metal. Its parallel flanges and right-angled ends facilitate assembly and combination into various components, saving approximately 25% of welding and riveting work, significantly speeding up construction and shortening the project timeline.