In steel structure engineering, hot-rolled steel beams and hot-rolled steel columns are steel components formed in one piece by hot-rolling process. With the characteristics of standardized production and convenient installation, they are widely used in small and medium-sized buildings, light structures and scenarios with relatively simple force application.

• Hot-rolled steel beams: Hot-rolled steel components mainly bearing bending moments and shear forces generated by lateral loads (such as floor loads and self-weight), they are the core of horizontal load-bearing structures.

• Hot-rolled steel columns: These are hot-rolled steel components mainly bearing axial forces and bending moments generated by vertical loads (such as self-weight of the structure and upper loads) and horizontal forces (such as wind loads and seismic forces), and they are the key components of vertical load-bearing structures.