11Ni-6Co-3.0Mo-2.2Ti Maraging Steel

This is a nickel-cobalt maraging steel, a precipitation-hardened iron-nickel alloy engineered for extremely high strength while retaining reasonable toughness and ductility. The composition—dominated by nickel and cobalt with molybdenum and titanium as hardening elements—is typical of 18% Ni maraging steels (in this case, 11% Ni), which achieve strength through intermetallic precipitation rather than carbon, enabling excellent weldability and machinability compared to conventional high-strength steels. Industries including aerospace, precision tooling, pressure vessels, and sporting equipment exploit this alloy where weight savings, damage tolerance, and repeatability justify the material cost; it is particularly favored in applications requiring both ultra-high strength and the ability to undergo controlled thermal treatment without brittleness or distortion.