AMS6511C Steel, Maraging, Bars, Forgings, Mechanical Tubing, Rings, and Stock for Forging and Rings 18Ni - 8.5Co - 3.2Mo - 0.20Ti - 0.10Al Double Vacuum Melted, Annealed

AMS6511C is the result of a Five-Year Review and update of the specification. The revision updates the title to match the scope, adds a precaution based on susceptibility to stress corrosion cracking (1.2.1), adds reporting information (3.1.2), clarifies macrostructure requirements (3.5.1, 8.8), adds pyrometry requirements (3.5.5), updates testing to clarify transverse requirements (3.5.5.1), prohibits unauthorized exceptions (3.5.8, 8.6), and notes finish condition and machining tolerances (8.5).