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
2021-10-02
WIP
AMS6490K
This specification covers a premium aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.