Titanium in Aerospace: Why Ti-6Al-4V Dominates Aircraft Manufacturing

Modern aircraft depend on titanium. The F-22 Raptor uses 41% titanium by structural weight, the 787 Dreamliner uses 15%. Titanium beats aluminum at high temperatures and beats steel on weight. Ti-6Al-4V at 895 MPa with 4.43 density gives a strength-to-weight ratio of 202, beating both aluminum (167) and steel (102-153). Landing gear: the B777 titanium landing gear beam saves 270 kg versus steel per aircraft. Fasteners: over 100,000 titanium fasteners per wide-body aircraft saving 720 kg. Wing structures, floor supports, and seat tracks all benefit from titanium. In jet engines, titanium is used for fan blades and discs, compressor blades and casings. Standard Gr5 works to 400C, while high-temperature alloys like IMI 834 go to 600C. Flame-retardant Alloy C prevents titanium fires in engine casings. Aerospace standards are AMS not ASTM: AMS 4911 for sheet and plate, AMS 4928 for bar and forgings. AMS adds mandatory ultrasonic testing, microstructure evaluation, and full traceability. Each kilogram saved on an aircraft equals roughly $500 in fuel savings over its service life. Ylasting Titanium is based in Baoji, the center of China titanium industry, supplying aerospace-grade titanium with full documentation. Contact us for AMS-certified material.