Historical
SAE AMS 6470P-2018
Steel, Nitriding, Bars, Forgings, and Tubing 1.6 Cr – 0.35Mo – 1.13Al (0.38 – 0.43C) (135 Mod)
This specification covers an aircraft quality nitriding grade low alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.
Society of Automotive Engineers [sae]