Browse Standards AMS4991C
Historical Revised 2002-06-14

Titanium Alloy Castings, Investment 6al 4v Hot Isostatic Pressed, Anneal Optional AMS4991C

This specification covers a titanium alloy in the form of investment castings having four grades of permissible discontinuities.

These castings have been used typically for parts of intricate design requiring a combination of good strength-to-weight ratio, creep and fatigue properties, and corrosion resistance up to 750 degrees F (399 degrees C), but usage is not limited to such applications.

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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