Ti-6Al-4V-Alpha-beta or beta processed, / annealed Die forging: MIL-HDBK-5J Design Allowables
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| Material class | Titanium |
| Alloy / temper / form | Ti-6Al-4V / Alpha-beta or beta processed, / annealed / Die forging |
| Specifications | AMS 4920 |
| Handbook | MIL-HDBK-5J, 31 January 2003, section 5.4.1.0, Table 5.4.1.0(f) (pdf page 58 of the chapter file) |
| Dimension bands | 2 |
| Density | 0.16 lb/in3 |
Design Mechanical and Physical Properties (room temperature)
As printed in the handbook table. 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 | 0–2 in | 2.001–6.000 in | |
|---|---|---|---|
| Specification | AMS 4920 | AMS 4920 | |
| Basis | S | S | |
| Ftu, ksi | L | 130 | 130 |
| LT | 130 | 130 | |
| ST | … | 130 | |
| Fty, ksi | L | 120 | 120 |
| LT | 120 | 120 | |
| ST | … | 120 | |
| Fcy, ksi | L | … | 123 |
| LT | … | 128 | |
| ST | … | … | |
| Fsu, ksi | L | … | 79 |
| LT | … | 79 | |
| ST | … | 79 | |
| Fbru (e/D = 1.5), ksi | L | … | 203 |
| LT | … | 203 | |
| ST | … | 203 | |
| Fbru (e/D = 2.0), ksi | L | … | 257 |
| LT | … | 257 | |
| ST | … | 257 | |
| Fbry (e/D = 1.5), ksi | L | … | 171 |
| LT | … | 171 | |
| ST | … | 171 | |
| Fbry (e/D = 2.0), ksi | L | … | 201 |
| LT | … | 201 | |
| ST | … | 201 | |
| e, % | L | 8 | 8 |
| LT | 8 | 8 | |
| ST | … | 8 | |
| E, Msi | 16.9 | 16.9 | |
| Ec, Msi | 17.2 | 17.2 | |
| G, Msi | 6.5 | 6.5 | |
| ν | 0.31 | 0.31 | |
| ρ, lb/in3 | 0.16 | 0.16 | |
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
Elongation and exposure effects
| °F | F_tu | F_ty | F_cy | F_su | F_bru | F_bry |
|---|---|---|---|---|---|---|
| -300 | 150.5 | 156.4 | ||||
| -200 | 133 | 135 | ||||
| -100 | 118.1 | 118.8 | ||||
| 0 | 107.5 | 107.6 | ||||
| 100 | 98.2 | 98.1 | 97.4 | 97.4 | 97.7 | 97.7 |
| 200 | 90.9 | 88.7 | 86.7 | 90 | 90.2 | 87.6 |
| 300 | 84.3 | 79.4 | 77.2 | 82.7 | 83.2 | 78.9 |
| 400 | 78.1 | 71.1 | 69.8 | 77.1 | 77.7 | 71.6 |
| 500 | 73.6 | 65.2 | 65 | 73.1 | 73.5 | 66 |
| 600 | 71.6 | 63 | 62.1 | 70.9 | 71.9 | 63.7 |
| 700 | 69.6 | 61 | 60.2 | 68.3 | 71.2 | 62.1 |
| 800 | 66.5 | 58.1 | 57.9 | 65.5 | 69.4 | 59.8 |
Factors in percent of the room-temperature allowable.
Other Ti-6Al-4V Tables
- Ti-6Al-4V-Alpha-beta processed, annealed Die forging (Table 5.4.1.0(f))
- Ti-6Al-4V-Annealed Bar (Table 5.4.1.0(c))
- Ti-6Al-4V-Annealed Extrusion (Table 5.4.1.0(e))
- Ti-6Al-4V-Annealed HIP Casting (Table 5.4.1.0(g))
- Ti-6Al-4V-Annealed Plate (Table 5.4.1.0(b))
- Ti-6Al-4V-Annealed Sheet (Table 5.4.1.0(b))
- Ti-6Al-4V-Solution treated and aged Extrusion (Table 5.4.1.0(e))
- Ti-6Al-4V-Solution treated and aged Rectangular bar (Table 5.4.1.0(d))
- Ti-6Al-4V-Solution treated and aged Round, square, and hexagon bar (Table 5.4.1.0(d))
- Ti-6Al-4V-Solution treated and aged Sheet, strip, and plate (Table 5.4.1.0(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.