Historical
SAE AMS 6382P-2014 (SAE AMS6382P-2014)
Steel, Bars, Forgings, and Rings 0.95Cr - 0.20Mo (0.38 - 0.43C) (SAE 4140) Annealed
This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, flash welded rings, and stock for forging or flash welded rings.
Society of Automotive Engineers [sae]