0.05C 17.6Ni-1.8Mo Low Alloy Steel

This is a low-alloy maraging steel, distinguished by its high nickel (17.6%) and molybdenum (1.8%) content combined with very low carbon (0.05%), titanium addition, and controlled trace elements. The composition is characteristic of maraging steels designed for age-hardening after simple heat treatment, offering excellent combination of strength and toughness without the brittleness typical of conventional high-carbon hardened steels. Maraging steels of this type are employed in demanding aerospace and defense applications where damage tolerance, dimensional stability, and consistent mechanical properties across thick sections are critical, as well as in tooling applications requiring high strength with acceptable toughness. The material's appeal lies in its ability to achieve very high strength levels while maintaining fracture toughness and weldability superior to similarly strong conventional alloy steels, making it the choice when weight reduction, precision, or impact resistance cannot be compromised.