Advanced Metals
Ti-8Al-1Mo-1V
Ti-8Al-1Mo-1V is a "near alpha" alloy which offers excellent combinations of strength, ductility, fracture toughness and high cycle fatigue strength. It is designed primarily for creep resistance up to 430°C (805°F).
The Ti-8-1-1 alloy has the highest tensile modulus and lowest density of any commercial titanium alloy and is primarily used in aircraft engine applications such as forged fan, landing gear or compressor blades. This alloy is noted for being difficult to fabricate in larger sections.
Typical heat treatment for this alloy: Solution heat treat: 28-56°C below beta transus for a minimum for 30 mins, then water quench. Aging heat treatment: 482-593°C for 8 hrs, air cool.
Chemical composition of Ti-8Al-1Mo-1V (%, max.)
Grade
UNS
O
N
C
H
Fe
Al
Mo
V
Ti-8-1-1
R54810
0.15
0.05
0.08
0.0125
0.3
7.5-8.5
0.75-1.25
0.75-1.25
Grade
Tensile strength
Yield strength
Elongation in 4D
Reduction of area
Hardness
Ti-8-1-1
1020
930
10
40
350
(MPa)
(MPa)
(%)
(%)
(HV)
Available forms
Forging
Rod and bar
Plate and sheet
Specification
AMS 4915, AMS 4916, AMS 4972, AMS 4973
MIL-T-9046, MIL-T-9047
Typical application
Aerospace engines components such as compressor blades, discs, spacers, seals, rings.
