https://saemobilus.sae.org/standards/ams5886c-alloy-corrosion-heat-resistant-bars-forgings-rings-50ni-20cr-20co-58mo-22ti-045al-consumable-electrode-vacuum-induction-melted-2100-f-1149-c-solution-heat-treated
AMS5886C: Alloy, Corrosion and Heat-Resistant, Bars, Forgings, and Rings 50Ni - 20Cr - 20Co - 5.8Mo...