When selecting the right aluminum alloy for solar mounting, 6005-T5, 6063, and 6061 stand out for their balance of strength, corrosion resistance, and extrudability. In 2025, as solar installations grow across the US and EU, these alloys offer cost-effective, weatherproof performance—and sourcing. . The truth is, both materials have their own advantages—and the right choice really depends on your project. Based on Sunforson's experience in thousands of rooftop and ground-mount installations, here's a practical comparison you can rely on. Aluminum Alloy: Lightweight, Corrosion-Resistant, and. . Among the myriad materials that contribute to the efficiency, durability, and overall performance of solar energy systems, aluminum stands out as a pivotal element. Its unique combination of properties—ranging from lightweight strength and corrosion resistance to excellent electrical conductivity. . Both 6063-T6 and 6005-T5 are aluminum alloys and are widely used in solar structures. The average alloy composition for both are very similar. Now let's see how to achieve both material to it's standard: T5:solution high-temperature forming + artificial aging. It is cooled by a high-temperature. . When selecting solar mounting materials, understanding the yield strength difference between steel and aluminum becomes crucial for structural integrity and long-term performance. Steel typically offers yield strength between 250-1000 MPa, while aluminum alloys range from 100-455 MPa, making steel. .