SAE AMS5659M
SAE AMS5659M Steel, Corrosion Resistant, Bars, Wire, Forgings, Rings, and Extrusions 15Cr 4.5Ni 0.30Cb (Nb) 3.5Cu Consumable Electrode Melted Solution Heat Treated, Precipitation Hardenable
standard by SAE International, 12/17/2008
standard by SAE International, 12/17/2008