SAE AMS6491D
SAE AMS6491D
Steel Bars, Forgings, and Tubing 4.1Cr â 4.2Mo â 1.0V (0.80 â 0.85C) (M-50) Premium Aircraft-Quality for Bearing Applications, Double Vacuum Meltedstandard by SAE International, 05/17/2010
standard by SAE International, 05/17/2010