7075-T6 Die 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 | Aluminum |
| Alloy / temper / form | 7075 / T6 / Die forging |
| Specifications | AMS 4126, MIL-A-22771, and QQ-A-367 |
| Handbook | MIL-HDBK-5J, 31 January 2003, section 3.7.6.0, Table 3.7.6.0(e) (pdf page 381 of the chapter file) |
| Dimension bands | 4 |
| Density | 2796 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 4126, MIL-A-22771, and QQ-A-367 | AMS 4126, MIL-A-22771, and QQ-A-367 | AMS 4126, MIL-A-22771, and QQ-A-367 | AMS 4126, MIL-A-22771, and QQ-A-367 | ||||
| Basis | A | B | A | B | A | B | S | |
| Ftu, MPa | L | 517.1 | 537.8 | 510.2 | 530.9 | 510.2 | 524 | 503.3 |
| LT | 489.5 | … | 489.5 | … | 482.6 | … | 482.6 | |
| ST | … | … | … | … | … | … | … | |
| Fty, MPa | L | 441.3 | 461.9 | 434.4 | 455.1 | 434.4 | 448.2 | 427.5 |
| LT | 420.6 | … | 420.6 | … | 413.7 | … | 413.7 | |
| ST | … | … | … | … | … | … | … | |
| Fcy, MPa | L | 461.9 | 482.6 | 455.1 | 475.7 | 455.1 | 468.8 | 448.2 |
| LT | … | … | … | … | … | … | … | |
| ST | 441.3 | 468.8 | 441.3 | 461.9 | 434.4 | 455.1 | 434.4 | |
| Fbru (e/D = 1.5), MPa | L | 723.9 | 751.5 | 717.1 | 744.6 | 717.1 | 730.8 | 703.3 |
| LT | 723.9 | … | 717.1 | … | 717.1 | … | 703.3 | |
| ST | 723.9 | 751.5 | 717.1 | 744.6 | 717.1 | 730.8 | 703.3 | |
| Fbru (e/D = 2.0), MPa | L | 930.8 | 965.3 | 917 | 951.5 | 917 | 937.7 | 903.2 |
| LT | 930.8 | … | 917 | … | 917 | … | 903.2 | |
| ST | 930.8 | 965.3 | 917 | 951.5 | 917 | 937.7 | 903.2 | |
| Fbry (e/D = 1.5), MPa | L | 572.3 | 599.8 | 565.4 | 592.9 | 565.4 | 579.2 | 558.5 |
| LT | 572.3 | … | 565.4 | … | 565.4 | … | 558.5 | |
| ST | 572.3 | 599.8 | 565.4 | 592.9 | 565.4 | 579.2 | 558.5 | |
| Fbry (e/D = 2.0), MPa | L | 661.9 | 689.5 | 648.1 | 682.6 | 648.1 | 668.8 | 641.2 |
| LT | 661.9 | … | 648.1 | … | 648.1 | … | 641.2 | |
| ST | 661.9 | 689.5 | 648.1 | 682.6 | 648.1 | 668.8 | 641.2 | |
| e, % | L | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| LT | 3 | … | 3 | … | 3 | … | 2 | |
| ST | … | … | … | … | … | … | … | |
| E, GPa | 68.95 | 68.95 | 68.95 | 68.95 | 68.95 | 68.95 | 68.95 | |
| Ec, GPa | 71.71 | 71.71 | 71.71 | 71.71 | 71.71 | 71.71 | 71.71 | |
| G, GPa | 26.2 | 26.2 | 26.2 | 26.2 | 26.2 | 26.2 | 26.2 | |
| ν | 0.33 | 0.33 | 0.33 | 0.33 | 0.33 | 0.33 | 0.33 | |
| ρ, kg/m³ | 2796 | 2796 | 2796 | 2796 | 2796 | 2796 | 2796 | |
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
| °C | F_tu | F_ty | F_cy | F_su | F_bru | F_bry |
|---|---|---|---|---|---|---|
| -184 | 117.8 | 117.6 | ||||
| -129 | 110 | 110 | ||||
| -73 | 105.5 | 105.6 | ||||
| -18 | 102.9 | 102.8 | ||||
| 38 | 98.6 | 98.9 | 99.8 | 99.8 | 97.2 | 99.5 |
| 93 | 89.2 | 91.2 | 94.7 | 97 | 87.5 | 96.1 |
| 149 | 74.2 | 79 | 80.5 | 84.6 | 77.8 | 84.3 |
| 204 | 45.7 | 50 | 50.5 | 58.2 | 53.1 | 58.5 |
| 26 | 19.9 | 19.8 | 20.2 | 27.7 | 24.3 | 23.1 |
| 316 | 11.8 | 11.8 | 15.6 | 14.5 |
Factors in percent of the room-temperature allowable.
Other 7075 Tables
- 7075-T6 Clad sheet (Table 3.7.6.0(c))
- 7075-T6 Hand forging (Table 3.7.6.0(f))
- 7075-T6 and T62 Clad sheet (Table 3.7.6.0(c))
- 7075-T6 and T62 Sheet (Table 3.7.6.0(b))
- 7075-T6, T651, and T62 Bar, rod, and shapes: rolled, drawn, or cold-finished (Table 3.7.6.0(d))
- 7075-T6, T6510, T6511, and T62 Extrusion (rod, bar, and shapes) (Table 3.7.6.0(g))
- 7075-T62 Clad plate (Table 3.7.6.0(c))
- 7075-T62 Plate (Table 3.7.6.0(b))
- 7075-T651 Clad plate (Table 3.7.6.0(c))
- 7075-T651 Plate (Table 3.7.6.0(b))
- 7075-T652 Die forging (Table 3.7.6.0(e))
- 7075-T652 Hand forging (Table 3.7.6.0(f))
- 7075-T73 Hand forging (Table 3.7.6.0(f))
- 7075-T73 Sheet (Table 3.7.6.0(b))
- 7075-T7351 Plate (Table 3.7.6.0(b))
- 7075-T7352 Die forging (Table 3.7.6.0(e))
- 7075-T7352 Hand forging (Table 3.7.6.0(f))
- 7075-T73a, T73510, T73511 Extrusion (rod, bars, and shapes) (Table 3.7.6.0(g))
- 7075-T73a,b Die forging (Table 3.7.6.0(e))
- 7075-T73b or T7351 Bar, rod, and shapes: rolled, drawn, or cold-finished (Table 3.7.6.0(d))
- 7075-T76 Clad sheet (Table 3.7.6.0(c))
- 7075-T76 Sheet and plate (Table 3.7.6.0(b))
- 7075-T76, T76510, T76511 Extrusion (rod, bar, and shapes) (Table 3.7.6.0(g))
- 7075-T7651 Clad plate (Table 3.7.6.0(c))
- 7075-T7651 Sheet and plate (Table 3.7.6.0(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.