10Ni-13Co Maraging Steel

10Ni-13Co maraging steel is a high-strength, low-carbon iron-nickel-cobalt alloy designed to achieve exceptional strength through precipitation hardening rather than carbon content, making it highly machinable in the annealed condition before heat treatment. This material is primarily used in aerospace and defense applications where extreme strength combined with reasonable toughness and machinability is critical—including rocket motor cases, landing gear components, and high-performance tooling. Engineers select maraging steel when conventional high-carbon steels or other super-alloys prove either too brittle to machine, too expensive, or unable to deliver the required strength-to-weight ratio in complex geometries.