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FRP Grating vs Aluminum Grating: Corrosion Performance Analysis in Harsh Environments When selecting materials for industrial applications in corrosive environments, the choice between FRP (Fiber Reinforced Plastic) grating and aluminum grating becomes critical. This article examines how these materials perform under corrosive conditions through comprehensive testing and analysis. What fundamental differences exist between these materials that affect their corrosion resistance? FRP grating is composed of fiberglass reinforcement and resin matrix, creating a non-metallic structure inherently resistant to electrochemical corrosion. In contrast, aluminum grating, while naturally forming a protective oxide layer, remains susceptible to pitting and galvanic corrosion, especially in chloride-rich environments. How do these materials perform in specific corrosive scenarios? Extensive corrosion testing reveals that FRP grating maintains structural integrity in chemical processing plants, marine facilities, and wastewater treatment stations where exposure to acids, alkalis, and saltwater is constant. Aluminum grating, while initially cost-effective, shows significant degradation over time in these environments, requiring frequent maintenance and replacement. What testing methodologies provide the most reliable performance data? Accelerated corrosion tests, including salt spray exposure, chemical immersion, and cyclic humidity testing, demonstrate FRP grating’s superior performance with minimal strength retention loss. Aluminum grating typically exhibits surface pitting, intergranular corrosion, and eventual structural