Equal angle steel, characterized by two equal - length legs, is available in a diverse range of sizes. The side lengths of equal angle steel typically vary from as small as 20 mm×20 mm to as large as 200 mm×200 mm. For instance, smaller sizes like 20 mm×20 mm to 50 mm×50 mm are often used in light - duty applications. These smaller sections have thicknesses usually ranging from 2 mm to 5 mm, making them suitable for projects with relatively low load - bearing requirements, such as small - scale furniture frames or simple bracing in residential DIY projects.
Larger equal angle steel, with side lengths of 100 mm×100 mm and above, can have thicknesses from 6 mm up to 20 mm. These larger and thicker sections are designed for heavy - duty applications. In construction, for example, 150 mm×150 mm equal angle steel with a 10 - mm thickness might be used for the structural bracing of industrial buildings or in the construction of bridges where greater strength and stability are required. The wide range of sizes allows engineers and fabricators to select the most appropriate equal angle steel based on the specific load - bearing needs and spatial constraints of their projects.