This specification covers a premium aircraft-quality steel in the form of bars, forgings, mechanical tubing, flash welded rings, and stock for forging or flash welded rings. These products have been used typically for parts requiring through-hardening, without liquid quenching, to yield strengthof 200 ksi (1379 MPa) and where such parts may require welding during fabrication, but usage is not limited to such applications.
SAE AMS6511A-2012 history
2023SAE AMS6511C-2023 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