SeAH CSS has developed a broad aerospace & defense materials portfolio, offering specialty steels, high-strength aluminum forgings, and advanced titanium alloys. Steel grades such as 300M, 17-4PH, maraging steels, and carbon/alloy steels serve mission-critical parts like gun barrels and structural airframe components. Aluminum AL7050 forgings are used in wing spars. Titanium Grades 1-5, 23 deliver excellent strength-to-weight ratios for engine parts (fan casings, housings) and landing gear. The manufacturing process is supported by rigorous quality standards and an integrated facility in Changwon, enabling consistent performance, high purity, and compliance with aerospace and defense OEM requirements.