MP159 per AMS 5843 Cobalt-Nickel Alloy, Corrosion and Heat-Resistant, Bars, 19Cr – 36Co – 25Ni – 7.0Mo – 0.50Cb (Nb) – 2.9Ti – 0.20Al – 9.0Fe, Vacuum Induction Plus Vacuum Consumable Electrode Melted, Solution Heat Treated Work Strengthened and Aged

The AMS 5843 specification covers MP159 high strength, corrosion and heat resistant cobalt-chromium-nickel alloy in the form of bars.