6061-T6511 Aluminum Square Bar is a precision-machined, high-strength extrusion ideal for load-bearing structural and fabrication projects. Its hardness and excellent machinability make it suitable for brackets, framing, and industrial parts that require tight tolerances, corrosion resistance, and long-term durability.

Aluminum Square Bar, also called "square rod," is a solid, sharp-cornered extrusion prized for its clean profile and lightweight strength. Commonly used in construction, support bracing, and general fabrication, it resists corrosion while offering easy machining, cutting, and welding across a range of indoor and outdoor applications.