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2017-04-04
WIP Standard
AMS4978H
This specification covers a titanium alloy in the form of bars, wire, forgings, flash welded rings 4.000 inches (101.60 mm) and under in diameter, or least distance between parallel sides and stock of any size for forging or flash welded rings (see 8.6).
CURRENT
2014-03-05
Standard
AMS4978G
This specification covers a titanium alloy in the form of bars, wire, forgings, flash welded rings 4.000 inches (101.60 mm) and under in diameter or least distance between parallel sides and stock of any size for forging or flash welded rings (See 8.6).
HISTORICAL
2011-06-23
Standard
AMS4978F
This specification covers a titanium alloy in the form of bars, wire, forgings, flash welded rings, and stock for forging or flash welded rings.
HISTORICAL
2007-07-13
Standard
AMS4978E
This specification covers a titanium alloy in the form of bars, wire, forgings, flash welded rings, and stock for forging or flash welded rings.
HISTORICAL
2002-04-22
Standard
AMS4978D
This specification covers a titanium alloy in the form of bars, wire, forgings, flash welded rings, and stock for forging or flash welded rings. Primarily for parts that do not require heat treatment but require high mechanical properties in the annealed condition. This alloy exhibits a high strength-to-weight ratios up to 750 degrees F (399 degrees C). Certain processing procedures and service conditions may cause these products to become subject to stress-corrosion cracking. ARP 982 recommends practices to minimize such conditions.
HISTORICAL
1989-10-01
Standard
AMS4978C
This specification covers a titanium alloy in the form of bars, wire, forgings, flash welded rings, and stock for forging or flash welded rings.
HISTORICAL
1981-07-01
Standard
AMS4978B
This specification covers a titanium alloy in the form of bars, wire, forgings, flash welded rings, and stock for forging or flash welded rings.
HISTORICAL
1971-05-15
Standard
AMS4978A
This specification covers a titanium alloy in the form of bars, wire, forgings, flash welded rings, and stock for forging or flash welded rings.
HISTORICAL
1970-05-01
Standard
AMS4978
This specification covers a titanium alloy in the form of bars, wire, forgings, flash welded rings, and stock for forging or flash welded rings.
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