SAE AMS 5708M
Nickel Alloy, Corrosion and Heat-Resistant, Bars, Wire, Forgings, and Rings, 58Ni - 19.5Cr - 13.5Co - 4.3Mo - 3.0Ti - 1.4Al - 0.05Zr - 0.006B, Consumable Electrode or Vacuum Induction Melted, 1975 °F (1079 °C) Solution Heat Treated