Located in a desert region with high temperature, strong UV radiation and frequent sandstorms, the project required structural materials with a 25-year service life to match solar panel performance. Conventional galvanized steel brackets typically suffer obvious corrosion within 8–10 years in such harsh environments, failing to meet the project’s long-term operation requirements.

 

 

 

Grade: S350GD+ZM high-strength Al-Zn-Mg steel coil
Coating weight: ZM120 – ZM275
Thickness: 1.5 – 3.0mm
Application: processed into C/U-shaped steel brackets and tracking system components for solar panels

 

The Al-Zn-Mg alloy coating delivers over 2000 hours of corrosion resistance in neutral salt spray tests (ASTM B117), with 3–5 times longer service life than traditional hot-dip galvanized steel in desert climates.

Unique cut-edge self-healing property protects drilled and cut sections from on-site fabrication, eliminating the need for manual zinc-rich paint touch-up and reducing installation labor costs.

25-year design service life fully aligns with the solar farm’s operation cycle, while total material cost is over 30% lower than aluminum alloy bracket solutions.