H-section steel is a kind of economic section of high efficiency with more optimized section area distribution and more reasonable strength-to-weight ratio. Because its section is the same as the English letter "H", it gets its name. Because each part of H-beam is arranged at right angles, h-beam has the advantages of strong bending resistance, simple construction, cost saving and light structure weight in all directions, and has been widely used.

Channel steel can be divided into 4 types shape: cold-formed equal-side channel steel, cold-formed unequal-side channel steel, cold-formed inner-coiled channel steel, and cold-formed outer-coiled channel steel.

Angle steel can form various stress components according to different structural needs, and can also be used as connectors between components.