SAE AMS 5919C
Cobalt-Nickel Alloy, Corrosion- and Heat-Resistant, Round 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 and Work Strengthened, Modified Strength