Historical
SAE AMS 6509-2012 (SAE AMS6509-2012)
Steel Bars and Forgings 3.5Cr 7.5Ni 16.3Co 1.75Mo 0.2W (0.09-0.13C) Double Vacuum Melted, Normalized, Annealed
This specification covers a premium aircraft-quality alloy steel in the form of bars, forgings, and forging stock.
These products have been used typically for carburized parts requiring high minimum core hardness with a narrow range, reduced distortion and subject to magnetic particle inspection standards, but usage is not limited to such applications.
Content Provider
Society of Automotive Engineers [sae]