Form This specification covers a premium aircraft-quality steel in the form of bars@ forgings@ mechanical tubing@ flash welded rings up through 6.000 inches (152.40 mm)@ and stock for forging or flash welded rings. Application These products have been used typically for parts requiring through-hardening@ without liquid quenching@ to yield strength of 200 ksi (1379 MPa) and where such parts may require welding during fabrication@ but usage is not limited to such applications.
SAE AMS6511B-2018 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