Browse Standards AMS4991B
Historical REVISED 2001-02-01

Titanium Alloy Castings, Investment, 6A1 - 4V, Annealed AMS4991B

This specification covers a titanium alloy in the form of investment castings having four grades of permissible discontinuities.
AMS4991F
2018-04-28
Latest
Revised
AMS4991E
2014-04-24
Historical
Revised
AMS4991D
2010-04-19
Historical
Revised
AMS4991C
2002-06-14
Historical
Revised
AMS4991B
2001-02-01
Historical
Revised
AMS4991A
1994-04-01
Historical
Reaffirmed
AMS4991
1980-07-15
Historical
Issued

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