Historical
SAE AMS 6325K-2015 (SAE AMS6325K-2015)
Steel, Bars, and Forgings 0.50Cr - 0.55Ni - 0.25Mo (0.38 - 0.43C) (SAE 8740) Heat Treated, 105 ksi (724 MPa) Tensile Strength
This specification covers an aircraft-quality, low-alloy steel in the form of heat treated bars and forgings.
Society of Automotive Engineers [sae]