A36 angle steel is available in a wide range of sizes, categorized into equal - angle and unequal - angle sections. For equal - angle A36 steel, the side lengths typically span from as small as 25 mm × 25 mm (1 inch × 1 inch) to as large as 200 mm × 200 mm (8 inches × 8 inches). Thicknesses for these sections can vary from 3 mm (0.12 inches) to 25 mm (1 inch). For instance, a common small - scale equal - angle A36 steel might be 50 mm × 50 mm × 5 mm (2 inches × 2 inches × 0.2 inches), which is often used in light - duty applications like small furniture frames or internal bracing in residential construction where the load - bearing requirements are relatively low.
On the other hand, unequal - angle A36 angle steel has side - length combinations such as 30 mm × 20 mm (1.2 inches × 0.8 inches) up to 150 mm × 100 mm (6 inches × 4 inches), with thicknesses ranging from 4 mm (0.16 inches) to 16 mm (0.63 inches). The smaller sizes of unequal - angle steel are suitable for applications where space is limited and directional strength is required, like in the fabrication of brackets for electrical enclosures. Larger sizes, however, are employed in more heavy - duty scenarios. For example, in the construction of industrial buildings, 125 mm × 75 mm × 10 mm (5 inches × 3 inches × 0.4 inches) unequal - angle A36 steel can be used for structural bracing, effectively distributing loads in specific directions and enhancing the overall stability of the building. The diverse size specifications of A36 angle steel allow engineers and fabricators to precisely select the appropriate section for each project, ensuring optimal performance and cost - effectiveness.