SAE AMS5919A
Cobalt-Nickel Alloy, Corrosion and Heat-Resistant, Round Bars, 19Cr - 36Co - 25Ni - 7.0Mo - 0.50Cb - 2.9Ti - 0.20Al - 9.0Fe, Vacuum Induction Plus Vacuum Consumable Electrode Melted, Solution Heat Treated and Work Strengthened, Modified Strength.