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 | 

Standard Specification: ASTM B348, ASME SB348, ISO, DINAWS A5.16 (ERTi-36); Standard Werkstoff No. UNS Titanium Al
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