Standard SAE AMS5661F
Nickel-Iron Alloy, Corrosion and Heat-Resistant, Bars, Forgings, and Rings 42.5Ni - 12.5Cr - 5.8Mo - 2.9Ti - 0.015B - 35Fe Consumable Electrode or Vacuum Induction Melted Solution, Stabilization, and Precipitation Heat Treated
Withdrawn