Standard
Steel Bars, Forgings, and Tubing 4.0Cr – 4.2Mo – 1.0V (0.77 – 0.85C) (M-50) Premium Aircraft-Quality for Bearing Applications Consumable Electrode Vacuum Melted
2010-04-19
HISTORICAL
AMS6490G
This specification covers a premium aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.