







Angle steel, commonly known as angle iron, is a versatile and essential long strip of steel with two sides that meet at a perfect right angle. Let's dive into the comprehensive details of angle steel:
1, Classification and specifications
Angle steel is primarily classified into two categories: equilateral angle steel and unequal angle steel. Equilateral angle steel features sides of equal length, and its specifications are denoted in millimeters as 'edge width x edge width x edge thickness', for example, '∠ 30 x 30 x 3' indicates an equilateral angle steel with a 30-millimeter edge width and 3-millimeter edge thickness. In contrast, unequal angle steel boasts sides of differing lengths, offering enhanced flexibility and versatility for various applications.
Domestically produced angle steel is available in specifications ranging from 2 to 20 centimeters, with side lengths measured in centimeters. Typically, a single type of angle steel can feature 2 to 7 different edge thicknesses. For imported angle steel, actual dimensions and edge thickness must be indicated on both sides, along with adherence to relevant standards.
2, Production method
Hot rolling is the predominant production method for angle steel, ideal for manufacturing standard-sized and large quantities of angle steel efficiently.
Cold drawing is tailored for crafting angle steel with finer, more precise dimensions and stringent tolerances, offering superior strength and an enhanced surface finish.
Forging is primarily employed for producing large-sized or custom-specified angle steel, achieving optimal grain structure and boosting overall performance.
3, Features and Applications
Angle steel is renowned for its outstanding weldability, plastic deformation capabilities, and robust mechanical strength. It belongs to the carbon structural steel category, integral to construction as a simple section steel.
Its utilization spans diverse building and engineering structures, including beams, bridges, transmission towers, lifting and transportation machinery, ships, industrial furnaces, reaction towers, container racks, and warehouses.
With its adaptable design, angle steel can be transformed into a variety of load-bearing components tailored to specific structural requirements, as well as serve as connectors between different components.
4, Other information
The chemical composition of angle steel is assessed through core indicators like C, Mn, P, and S, each with varying content levels.
Angle steel is available in delivery lengths categorized into fixed length and double length; the fixed length selection range for domestic angle steel differs based on specification numbers.
To approximate the weight of angle steel, use the formula: weight per meter=0.00785 × (edge width+edge width - edge thickness) × edge thickness. However, for precise calculations, consult the hardware manual.
In conclusion, angle steel is indispensable across numerous fields, credited to its distinctive shape and remarkable mechanical properties.