This project targets an implementation and development of corrosion resistant high strength maraging steels for two applications, i.e. a closed-die forged 1900MPa grade for aircraft landing gears for which process robustness is the bottleneck currently, and a breakthrough lean stress corrosion resistant 1400MPa steel for sour service. These objectives will be realised via a combination of two industrial trials to evaluate improved processability and 3 waves of generic laboratory materials aiming at understanding the isolated effect of single elements and intermetallic phases (mainly Ni3Ti and NiAl). Extended dilatometry and advanced high resolution characterisation techniques are key differentiators to obtain an in-depth insight in the precipitation of nano-sized intermetallics.