SAE AMS 5848F
Steel, Corrosion-Resistant, Bars, Wire, Forgings, Extrusions, Mechanical Tubing, Rings, and Stock for Forgings, Extrusions, and Rings, Wear and Galling Resistant, 8.0Mn - 4.0Si - 17Cr - 8.5Ni - 0.13N Solution Heat Treated