Ti-5Al-2.5Sn-Annealed Bar: 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-5Al-2.5Sn / Annealed / Bar |
| Specifications | AMS 4926a and MIL-T-9047 |
| Handbook | MIL-HDBK-5J, 31 January 2003, section 5.3.1.0, Table 5.3.1.0(c) (pdf page 18 of the chapter file) |
| Dimension bands | 1 |
| Density | 4484 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 | 0.000–2.999 in (0–76.17 mm) | ||
|---|---|---|---|
| Specification | AMS 4926a and MIL-T-9047 | ||
| Basis | A | B | |
| Ftu, MPa | L | 792.9 | 868.7 |
| LT | 792.9 | 792.9 | |
| ST | 792.9 | 792.9 | |
| Fty, MPa | L | 758.4 | 827.4 |
| LT | 758.4 | 758.4 | |
| ST | 758.4 | 758.4 | |
| e, % | L | 10 | 10 |
| LT | 10 | 10 | |
| ST | 8 | 8 | |
| E, GPa | 106.9 | 106.9 | |
| Ec, GPa | 106.9 | 106.9 | |
| ρ, kg/m³ | 4484 | 4484 | |
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
Moduli at temperature
| °C | F_tu | F_ty | F_cy | F_su | F_bru | F_bry |
|---|---|---|---|---|---|---|
| -184 | 154.6 | 153.6 | ||||
| -129 | 131 | 131 | ||||
| -73 | 117.4 | 117.4 | ||||
| -18 | 106.9 | 106.9 | ||||
| 38 | 97.4 | 97.4 | 97.1 | 97.1 | 96.2 | 96.2 |
| 93 | 88 | 88 | 84.3 | 90.6 | 83.9 | 83.9 |
| 149 | 79.4 | 79.4 | 74.2 | 83.7 | 77.4 | 73.3 |
| 204 | 72.5 | 70.4 | 67.2 | 76.5 | 71.7 | 66.1 |
| 26 | 67 | 63.3 | 61.4 | 70.5 | 67.2 | 60.3 |
| 316 | 62.2 | 57.3 | 56.6 | 66.4 | 63.2 | 56.7 |
| 371 | 59.4 | 52.1 | 52.9 | 62.9 | 60 | 53.4 |
| 427 | 57.3 | 48.1 | 49.9 | 60.3 | 57.2 | 51.1 |
Factors in percent of the room-temperature allowable.
Other Ti-5Al-2.5Sn Tables
- Ti-5Al-2.5Sn-Annealed Extruded bars and shapes (Table 5.3.1.0(d))
- Ti-5Al-2.5Sn-Annealed Forging (Table 5.3.1.0(c))
- Ti-5Al-2.5Sn-Annealed Plate (Table 5.3.1.0(b))
- Ti-5Al-2.5Sn-Annealed Sheet (Table 5.3.1.0(b))
- Ti-5Al-2.5Sn-Annealed Strip (Table 5.3.1.0(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.