Titanium 6-2-4-2 (6Al-2Sn-4Zr-2Mo) is an alpha-beta titanium alloy capable of being heat treated to higher strengths in greater section sizes that 6Al-4V. Widely used in forged components, 6-2-4-2 beta forged material has enhanced strength, ductility and a combination of good low-cycle fatigue and fatigue-crack growth resistance. This alloy is used in the intermediate compressor stages of turbine engines for disks and blades, seals and for airframe parts.
Standard Specification:
AMS 4975 bars, wire, rings (solution and precipitation heat treated)
AMS 4981 bars, wire, forgings (solution and precipitation heat treated)
AMS 6905 bars, wire, forgings (duplex annealed)
AMS-T-9047 6Al-2Sn-4Zr-2Mo bar;
MIL-T-9047 6Al-2Sn-4Zr-2Mo bar;
Standard |
Werkstoff No. |
UNS |
Titanium Alloy 6-2-4-2 /6Al-2Sn-4Zr-2Mo |
3.7144 |
R54620 |
Technical Data Sheet
Chemical Composition |
||||||||||||
Weight % |
Ti |
Al |
Zr |
Mo |
Sn |
C |
Fe |
N |
O |
H |
Other |
|
Titanium Alloy 6-2-4-2 /6Al-2Sn-4Zr-2Mo |
Balance |
5.5~6.5 |
3.6~4.4 |
1.8~2.2 |
1.8~2.2 |
0.05 |
0.25 |
0.04 |
0.15 |
0.0150 |
0.3Total Max. |
Typical Mechanical Properties (Tensile Requirements)
Material |
Tensile Strength, min |
Yield Strength (0.2% Offset) min or range |
Elongation in 4D,min% |
||
ksi |
MPa |
ksi |
MPa |
||
Titanium Alloy 6-2-4-2 /6Al-2Sn-4Zr-2Mo |
135 |
931 |
125 |
862 |
4 |
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