Angle steel can be composed of various stress components according to different needs of the structure, and can also be used as a connector between components. Widely used in various building structures and engineering structures, such as beams, bridges, transmission towers, lifting and transportation machinery, ships, industrial furnaces, reaction towers, container racks, cable trench supports, power piping, busbar support installation, and warehouses shelves etc.

        Angle steel belongs to carbon structural steel for construction. It is a section steel with simple section. It is mainly used for metal components and frames of factory buildings. In use, it is required to have good weldability, plastic deformation performance and certain mechanical strength. The raw material billet for the production of angle steel is low-carbon square billet, and the finished angle steel is delivered in the state of hot rolling, normalizing or hot rolling. Angle steel, commonly known as angle iron, is a long strip of steel that is perpendicular to each other and forms an angle.

         Angle steel can be divided into equilateral angle steel and unequal angle steel. The two sides of an equilateral angle are equal in width. Its specifications are expressed in millimeters of side width x side width x side thickness. For example, "∟30×30×3" means an equilateral angle steel with a side width of 30 mm and a side thickness of 3 mm. It can also be indicated by the model number, which is the centimeter of the side width. For example, the ∟3# model does not indicate the size of different side thicknesses in the same model. The model number indicates.