7050 Aluminum Plate: The Corrosion-Resistant Powerhouse for Aerospace

7050’s edge comes from refined chemistry and heat treatment. Optimized Zn/Cu ratios plus zirconium for grain refinement earn it AMS 4049 certification. In T7651 temper, it hits 552MPa tensile strength (close to 7075’s 572MPa) but with 4x better corrosion resistance—surviving 2000+ hours of salt-spray testing vs. 7075’s 500. For 100mm+ thick plates, 7050 maintains uniform strength (7075 loses 20%), critical for fuselage frames.

This balance drives real aerospace value. On the C919, 7050 forms wing spars and fuselage stringers, cutting weight by 12% and boosting fuel efficiency by 5%. Militarily, it’s used in fighter armor and helicopter rotor hubs—its 47MPa·m¹/² fracture toughness (40% higher than 7075) prevents cracks during high-G moves. High-end auto mold makers also rely on its ±0.1mm precision for consistent complex panels.

Aerospace demands a reliable supply chain. We stock 5000 tons of 7050 (T73510/T7451/T7651), covering 2-300mm thickness and up to 2800mm width. Every batch gets AMS 2631 Level 2 ultrasonic testing (no internal defects) and certified reports for strength, fatigue, and corrosion.

We go beyond basic supply for aerospace primes. Custom heat treatment tailors properties for cryogenic rocket parts or high-temperature engines. Standard specs ship in 7-10 days, and our team helps navigate FAA/EASA airworthiness certifications to meet strict standards.