Browse Standards AMS6491C
Historical REVISED 2005-08-31

Steel Bars, Forgings, and Tubing 4.1Cr - 4.2Mo - 1.0V (0.80 - 0.85C) Premium Aircraft-Quality for Bearing Applications, Double Vacuum Melted AMS6491C

This specification covers a premium aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.
AMS6491F
2018-11-02
Latest
Revised
AMS6491E
2014-05-19
Historical
Revised
AMS6491D
2010-05-17
Historical
Revised
AMS6491C
2005-08-31
Historical
Revised
AMS6491B
2000-02-01
Historical
Revised
AMS6491A
1994-04-01
Historical
Reaffirmed
AMS6491
1976-01-15
Historical
Issued

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