SAE AMS 6456D
SAE AMS 6456D
Steel, Welding Wire 0.80Cr 1.8Ni 0.25Mo (0.35-0.40C) (SAE 4340Mod) Vacuum Melted, Environment-Controlled Packaging ( Reaffirmed: Nov 2011 )
standard published 02/01/2007 by SAE International