Heat-treated Aluminum 6061 is a popular choice for channels, U-shaped pieces that are usually extruded with a 90-degree angle on each side. With their cost-effectiveness, light weight, and excellent strength, Aluminum 6061 channels are commonly used to bind structural components used in architecture, machinery, furniture, paneling, railings, and other applications. The alloy provides some of the best corrosion resistance, enduring harsh natural and industrial environments.