15Ni-9Co-3.0Mo-0.8Ti Maraging Steel (var. 2)

This is a nickel-cobalt maraging steel, a precipitation-hardening iron-based superalloy engineered to achieve exceptional strength through controlled aging heat treatment rather than conventional work hardening. The high nickel (15%), cobalt (9%), and molybdenum (3%) content, combined with titanium and aluminum for precipitation strengthening, makes this variant suited to demanding applications requiring a combination of high strength and fracture toughness in relatively thick sections. Maraging steels are preferred over conventional high-strength alloys in aerospace and precision manufacturing where weight savings from material efficiency and damage tolerance are critical, and where the material's clean, ductile microstructure resists brittle failure better than conventional quenched-and-tempered steels.