0.05C 5.0Cr-1.8Mo-11.6Ni Low Alloy Steel (var. 2)

This is a precipitation-hardened maraging steel variant, characterized by very low carbon (0.05%), high nickel (11.6%), and balanced chromium-molybdenum additions with aluminum and titanium for age-hardening response. Maraging steels like this variant are engineered for aerospace and defense applications where ultra-high strength combined with adequate toughness and dimensional stability are critical; the low-carbon design minimizes brittleness while the alloying elements enable strength through precipitation hardening rather than carbon hardening, making this steel preferred over conventional high-strength steels when excellent machinability, weldability, and thermal stability after hardening are required.