3.7144 / Ti-6AI-2Sn-4Zr-2Mo
Standards
Mat. No.
3.7144
EU
-
AISI/ASTM
-
UNS
R54620
Other
T-A6ZR4DE
Titanium 6-2-4-2 (6Al-2Sn-4Zr-2Mo) is an alpha-beta titanium alloy with heat treatment capability. It is primarily used in forged parts. The 6-2-4-2 beta forging material offers increased strength, ductility, and a good combination of short-cycle fatigue and fatigue crack resistance.
Chemical Composition & Mechanical and Physical Properties
C%
0.050 max
N%
0.040 max
Ti%
Rest
Fe%
0.25 max
O%
0.15 max
H %
0.015 max
Mo %
1.80-2.20
Zr %
3.60-4.40
Sn%
1.80-2.20
AL &
5.50-6.50
0.2 % Yield Strength Rp N/mm2
940 min
Tensile Strength Rm N/mm2
1000 min
Elongation A5 %
15 min
Density g/cm3
4.54
Beta Transus °C
996
Termal İletkenlik W.m/m.m.C – 20 °C
6.92
Electrical Insulation Ω mm2/m
0.5
Application areas
In hot areas, compressor discs, impellers, turbine engines discs and blades and aircraft fuselage part.
Specifications
AMS 4919 sheet, strip, plate (duplex annealed), 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-9046 AB4 sheet, strip, plate, AMS-T-9047 6Al-2Sn-4Zr-2Mo bar, MIL-T-9046J AB-4 sheet, strip, plate, MIL-T-9047 6Al-2Sn-4Zr-2Mo bar, MIL-T-9046H Type III Comp G sheet, strip, plate
TA18 (w/drawn), TA19 (w/drawn), TA20 (w/drawn), TA25 (w/drawn), TA26 (w/drawn), TA27 (w/drawn)