Product Code:SAE AMS5768 Title:Alloy, Corrosion and Heat-Resistant, Bars, Forgings, and Rings, 21Cr - 20Ni - 20Co - 3.0Mo - 2.5W - 1.0Cb - 0.15N - 31Fe, Solution and Precipitation Heat Treated Issuing Committee:Ams F Corrosion Heat Resistant Alloys Committee Scope:This specification covers a corrosion and heat-resistant iron-chromium-nickel-cobalt alloy in the form of bars, wire, forgings, flash welded rings, and stock for forging, flash welded rings, or heading.MIL-C-5545C (NOTICE 1), MILITARY SPECIFICATION: CORROSION PREVENTIVE, AIRCRAFT ENGINE, HEAVY OIL TYPE (24 OCT 1991) [NO S/S DOCUMENT].