Browse Standards AMS6421H
Current REVISED 2021-03-01

Steel, Bars, Forgings, and Tubing 0.80Cr - 0.85Ni - 0.20Mo - 0.003B (0.35 - 0.40C) (Modified 98B37) AMS6421H

This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.
AMS6421H
2021-03-01
Latest
Revised
AMS6421G
2016-04-18
Historical
Revised
AMS6421F
2011-05-24
Historical
Revised
AMS6421E
2006-06-21
Historical
Revised
AMS6421D
2000-12-15
Historical
Revised
AMS6421C
1994-04-01
Historical
Reaffirmed
AMS6421B
1983-10-01
Historical
Revised
AMS6421A
1982-10-01
Historical
Noncurrent
AMS6421
1951-11-01
Historical
Issued

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