Ti-6Al-6V-2Sn-Solution treated and aged Bar and forging: MIL-HDBK-5J Design Allowables
show US units (ksi, Msi, lb/in³) open the MIL-HDBK-5J tool compare against temperature find alternatives
| Material class | Titanium |
| Alloy / temper / form | Ti-6Al-6V-2Sn / Solution treated and aged / Bar and forging |
| Specifications | AMS 4971 and AMS 4979 |
| Handbook | MIL-HDBK-5J, 31 January 2003, section 5.4.2.0, Table 5.4.2.0(c) (pdf page 95 of the chapter file) |
| Dimension bands | 4 |
| Density | 454 kg/m³ |
Design Mechanical and Physical Properties (room temperature)
Converted from the handbook table (ksi, Msi, lb/in³) and rounded to 4 significant figures; dimension bands in inches with mm in parentheses. Bases: A and B are statistical minimums (99 % and 90 % probability at 95 % confidence), S the specification minimum. Grain directions: L longitudinal, LT long transverse, ST short transverse.
| Dimension band | 0–1 in (0–25.4 mm) | 1.001–2.000 in (25.43–50.8 mm) | 2.001–3.000 in (50.83–76.2 mm) | 3.001–4.000 in (76.23–101.6 mm) | |
|---|---|---|---|---|---|
| Specification | AMS 4971 and AMS 4979 | AMS 4971 and AMS 4979 | AMS 4971 and AMS 4979 | AMS 4971 and AMS 4979 | |
| Basis | S | S | S | S | |
| Ftu, MPa | L | 1207 | 1172 | 1069 | 1034 |
| LT | 1207 | 1172 | 1069 | 1034 | |
| ST | … | … | 1069 | 1034 | |
| Fty, MPa | L | 1103 | 1069 | 999.7 | 965.3 |
| LT | 1103 | 1069 | 999.7 | 965.3 | |
| ST | … | … | 999.7 | 965.3 | |
| e, % | L | 20 | 20 | 20 | 20 |
| LT | 15 | 15 | 15 | 15 | |
| ST | … | … | 15 | 15 | |
| E, GPa | 110.3 | 110.3 | 110.3 | 110.3 | |
| Ec, GPa | 113.1 | 113.1 | 113.1 | 113.1 | |
| G, GPa | 42.75 | 42.75 | 42.75 | 42.75 | |
| ν | 0.31 | 0.31 | 0.31 | 0.31 | |
| ρ, kg/m³ | 4540 | 4540 | 4540 | 4540 | |
Effect of Temperature
Percent of the room-temperature value against temperature, digitized from the handbook figures (the shortest exposure of each figure, every 10 °F). Strength curves give the allowable at temperature; "after exposure" curves give the room-temperature property after a soak at that temperature.
Strength allowables at temperature, percent of room temperature
| °C | F_tu | F_ty | F_cy |
|---|---|---|---|
| 38 | 97.9 | 97.9 | 96.6 |
| 93 | 91.7 | 88.9 | 85.8 |
| 149 | 86.2 | 82.3 | 78.1 |
| 204 | 82.2 | 77.1 | 72 |
| 26 | 78.5 | 72.5 | 67.4 |
| 316 | 75.7 | 69.4 | 63.4 |
| 371 | 73.2 | 66.7 | 59.8 |
Factors in percent of the room-temperature allowable.
Other Ti-6Al-6V-2Sn Tables
- Ti-6Al-6V-2Sn-Air-cool annealed Bar (Table 5.4.2.0(c))
- Ti-6Al-6V-2Sn-Annealed Extruded bar and shapes (Table 5.4.2.0(e))
- Ti-6Al-6V-2Sn-Annealed Forging (Table 5.4.2.0(d))
- Ti-6Al-6V-2Sn-Annealed Sheet, strip, and plate (Table 5.4.2.0(b))
- Ti-6Al-6V-2Sn-Solution treated and aged Extruded bar and shapes (Table 5.4.2.0(e))
- Ti-6Al-6V-2Sn-Solution treated and aged Sheet, strip, and plate (Table 5.4.2.0(b))
Source and Use
U.S. Department of Defense (2003). Metallic Materials and Elements for Aerospace Vehicle Structures. MIL-HDBK-5J, 31 January 2003 (public domain). The values are the handbook's design allowables as extracted from the chapter tables; check the printed table before use in a certified analysis, and note that MIL-HDBK-5J was superseded by MMPDS, whose later editions may differ. No warranty is given.