15Ni-15Co-1.9Mo-0.8Ti Maraging Steel

15Ni-15Co-1.9Mo-0.8Ti is a nickel-cobalt maraging steel, a precipitation-hardened iron-based alloy designed to achieve ultra-high strength with reasonable toughness through aging heat treatment rather than carbon hardening. This alloy is used primarily in aerospace and defense applications where extreme strength-to-weight performance is critical, including aircraft landing gear, missile components, and high-pressure vessels; maraging steels like this composition are preferred over conventional high-strength steels because they combine excellent damage tolerance with minimal distortion during heat treatment, making them ideal for large structural components that cannot tolerate significant warping or cracking.