







Angle steel, a versatile and essential component in construction and engineering, is characterized by its long strip form with two sides that meet at a perfect right angle, earning it the common name of angle iron. Below, we delve into a comprehensive overview of angle steel:
1, Classification and Specifications
Angle steel is meticulously categorized into two primary types: equilateral angle steel and unequal angle steel. Equilateral angle steel features sides of identical length, with specifications represented in millimeters as 'edge width x edge width x edge thickness', exemplified by '∠ 30 x 30 x 3', indicating an equilateral angle steel with an edge width of 30 millimeters and an edge thickness of 3 millimeters. In contrast, unequal angle steel boasts differing side lengths, offering enhanced flexibility and adaptability across diverse applications.
Domestically produced angle steel is available in a range of specifications from 2 to 20 centimeters, with the side length denoted by the number in centimeters. Each angle steel size can present 2 to 7 distinct edge thicknesses. Imported angle steel must distinctly display actual dimensions and edge thicknesses on both sides, in conjunction with applicable standards.
2, Production Method
Hot Rolling: This widely adopted technique for crafting angle steel is ideal for fabricating standard sizes in large volumes, ensuring consistent quality and reliability.
Cold Drawing: This method is tailored for producing angle steel with precise dimensions and stringent tolerances, yielding higher strength and superior surface quality.
Forging: Utilized predominantly for manufacturing large-sized or specially customized angle steel, forging enhances grain structure and boosts overall performance.
3, Features and Applications
Angle steel is celebrated for its superior weldability, plastic deformation capabilities, and robust mechanical strength. Classified as carbon structural steel, it is integral to construction projects and categorized under simple section steel.
With its extensive application, angle steel is a cornerstone in a myriad of building and engineering structures, including beams, bridges, transmission towers, lifting and transportation machinery, ships, industrial furnaces, reaction towers, container racks, and warehouses.
Beyond primary uses, angle steel can be ingeniously configured to suit specific structural demands, effectively serving as load-bearing elements and as connectors among components.
4, Other Information
The chemical composition of angle steel is quantitatively assessed through key indicators: C, Mn, P, and S, each varying in content.
Angle steel delivery lengths are categorized into fixed and double lengths, with domestic angle steel offering a selection range dependent on the specific specification number.
The calculation formula for angle steel weight is: weight per meter = 0.00785 × (edge width + edge width - edge thickness) × edge thickness. This formula provides a rough estimation, with actual weight confirmed via hardware manuals.
In conclusion, angle steel stands as a pivotal component across multiple fields, owing to its distinctive shape and outstanding mechanical properties.