As of February 2020, angle steel is generally between 2,300 and 4,000 yuan per ton.
Angle steel, commonly known as angle iron, is a long strip of steel with two sides perpendicular to each other. There are equilateral angle steel and unequal angle steel. The width of both sides of the equilateral angle steel is equal. Its specifications are expressed in millimeters of side width × side width × 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 expressed by the model number, which is the number of centimeters of the side width, such as ∟3#. The model number does not indicate the dimensions of different side thicknesses in the same model. Therefore, the side width and side thickness dimensions of the angle steel should be filled in completely on the contract and other documents to avoid using the model number alone.
The specifications of hot-rolled equilateral angle steel are 2#-20#. Angle steel can be composed of various stress-bearing 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 and warehouses.
Extended information:
Be careful when purchasing angle steel: choose a regular company
The manufacturing process of angle steel is relatively simple, and the production process can be divided into hot rolling and cold rolling. There are two types of bending, hot rolling is used for large size angle steel, and cold bending is generally for smaller sizes.
The standard process is to use a steel billet (such as a square billet) to gradually roll into a V shape through multiple passes of repeated rolling in a special section steel rolling mill. The material is guaranteed, there is a transition arc on the inside of the corner, and the mechanical performance is reliable. .
The ones produced by Xiaofang are directly rolled (bent) from plates or strips. There is no transition arc on the inside of the corner, and because it is bent, the internal stress at the corner is large. , the mechanical properties are poor, and the most important point is that the material is not guaranteed, and it may even be "strip steel". Generally, such angle steel cannot be bent or welded when purchased. At most, it can be drilled in any length.
So when purchasing angle steel, you must carefully examine and choose a regular angle steel manufacturer.