H-Beam steel is an economical cross-section high-efficiency section with more optimized cross-sectional area distribution and a more reasonable strength-to-weight ratio. It is named because its cross-section is the same as the English letter "H". Since all parts of the H-shaped steel are arranged at right angles, the H-shaped steel has the advantages of strong bending resistance in all directions, simple construction, cost saving and light structural weight, and has been widely used.

The cross-sectional shape is similar to an economical cross-section profile of the capital Latin letter H, also known as universal steel beam, wide edge (edge) I-beam or parallel flange I-beam. The cross-section of H-shaped steel usually includes two parts, the web and the flange, also known as the waist and the edge.