Ti-6Al-2Sn-4Zr-2Mo at a glance
Where to buy
Designation
| Item | Value |
|---|---|
| Designation | Ti-6Al-2Sn-4Zr-2Mo |
| Class | Titanium |
| Type | titanium alloy |
Properties
| Property | Value | Source |
|---|---|---|
| Type | Near-alpha titanium with solid-solution strengthening by tin and zirconium; molybdenum improves strength, creep and stability | MIL-HDBK-5J, par. 5.3.3.0 |
| Temperature | Creep resistant and relatively stable to about 1,050 °F | MIL-HDBK-5J, par. 5.3.3.0 |
| Silicon | About 0.08 % silicon improves creep strength | MIL-HDBK-5J, par. 5.3.3.0 |
| Sheet | AMS 4919 (duplex annealed) and AMS-T-9046 Comp. AB-4 (triplex annealed) | MIL-HDBK-5J, Table 5.3.3.0(b) |
| Forms | Bar, billet, plate, sheet, strip and extrusions | MIL-HDBK-5J, par. 5.3.3.0 |
| Welding | TIG or MIG fusion gives 100 percent joint efficiency, with limited weld-zone ductility | MIL-HDBK-5J, par. 5.3.3.0 |
Design allowables — Ti-6Al-2Sn-4Zr-2Mo sheet
MIL-HDBK-5J Table 5.3.3.0(b), p. 5-45.
| Property | Duplex annealed, AMS 4919, 0.047–0.093 in, A basis | Triplex annealed, AMS-T-9046 AB-4, to 0.187 in, S basis | Unit |
|---|---|---|---|
| Ftu, L and LT | 135 | 145 | ksi |
| Fty, L and LT | 125 | 135 | ksi |
| Fcy, L and LT | 132 | — | ksi |
| E | 16.5 | 16.5 | 10³ ksi |
| G | 6.2 | 6.2 | 10³ ksi |
| Density | 0.164 | 0.164 | lb/in³ |
The table has columns for several thicknesses (to 0.046, 0.047–0.093, 0.094–0.140, 0.141–0.187 in) and A and B bases, with bearing values; only the 0.047–0.093 in A-basis column and the triplex S column are shown. Bearing values are dry-pin values.
Notes from the guide
- Partial table. Open Table 5.3.3.0(b) for other thicknesses.
- Engine and nacelle repairs follow the manufacturer's manual.
Where to buy
AmericaDistributor coming soonOur partner for this region is on its way
EuropeDistributor coming soonOur partner for this region is on its way
OceaniaDistributor coming soonOur partner for this region is on its way
Distributors coming soon.
Sources
- FAA AC 43.13-1B CHG 1 — par. 6-181.
- FAA-H-8083-31B, Aviation Maintenance Technician Handbook, Airframe, Volume 1 — pp. 4-85 and 4-86, titanium.
- MIL-HDBK-5J, Metallic Materials and Elements for Aerospace Vehicle Structures (31 Jan 2003) — par. 5.3.3.0 and Table 5.3.3.0(b), p. 5-45. Cancelled; superseded by MMPDS.
- MMPDS (formerly MIL-HDBK-5) — the current home of design allowables. A repair substantiation cites MMPDS or the SRM, not a website.
Educational reference only. not approved data. Always consult the applicable SRM, AMM, or AC 43.13-1B and your certifying authority.