Angle steel, as the name implies, is steel with angles, also known as angle iron. Types can be divided into equilateral angle steel and unequal angle steel.
Generally, large-size angle steel can be used in steel structures, bridges, load-bearing brackets, curtain walls, etc. Ordinary angle steel is used for roof beams, industrial furnaces, shelves, etc.
The production process of angle steel can be divided into two types: hot rolling and cold bending. Hot rolling is used for large-size angle steel, while cold bending is generally smaller.
Unequal angle steel
The standard process is made by repeatedly rolling the steel billet through multiple passes of the profile steel rolling mill. The material is guaranteed, there is a transition arc on the inside of the corner, and the mechanical performance is reliable; while the ones produced by small workshops are directly processed from plates or strips. There is no transitional arc on the inside of the angle, and because it is bent, the internal stress at the corner is relatively large. The important point is that the raw materials are not guaranteed. Such angle steel generally cannot be bent or welded when purchased. It can only be cut and punched.
Post time: Jul-30-2024