7055-T74511 Extrusion: MIL-HDBK-5J Design Allowables
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| Material class | Aluminum |
| Alloy / temper / form | 7055 / T74511 / Extrusion |
| Specifications | AMS 4324 |
| Handbook | MIL-HDBK-5J, 31 January 2003, section 3.7.5.0, Table 3.7.5.0(b) (pdf page 364 of the chapter file) |
| Dimension bands | 3 |
| Density | 2851 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 | 0.000–0.249 in (0–6.325 mm) | 0.250–0.499 in (6.35–12.67 mm) | 0.500–3.000 in (12.7–76.2 mm) | ||||
|---|---|---|---|---|---|---|---|
| Specification | AMS 4324 | AMS 4324 | AMS 4324 | ||||
| Basis | A | B | A | B | A | B | |
| Ftu, MPa | L | 572.3 | 579.2 | 579.2 | 586.1 | 586.1 | 599.8 |
| LT | 537.8 | 544.7 | 544.7 | 551.6 | 551.6 | 565.4 | |
| Fty, MPa | L | 524 | 537.8 | 530.9 | 544.7 | 537.8 | 551.6 |
| LT | 496.4 | 510.2 | 503.3 | 517.1 | 510.2 | 524 | |
| Fcy, MPa | L | 524 | 537.8 | 530.9 | 544.7 | 537.8 | 551.6 |
| LT | 530.9 | 544.7 | 537.8 | 551.6 | 544.7 | 558.5 | |
| Fsu, MPa | L | 296.5 | 303.4 | 317.2 | 310.3 | 310.3 | 317.2 |
| LT | 296.5 | 303.4 | 317.2 | 310.3 | 310.3 | 317.2 | |
| Fbru (e/D = 1.5), MPa | L | 792.9 | 799.8 | 799.8 | 806.7 | 806.7 | 827.4 |
| LT | 792.9 | 799.8 | 799.8 | 806.7 | 806.7 | 827.4 | |
| Fbru (e/D = 2.0), MPa | L | 1041 | 1048 | 1048 | 1062 | 1062 | 1089 |
| LT | 1041 | 1048 | 1048 | 1062 | 1062 | 1089 | |
| Fbry (e/D = 1.5), MPa | L | 661.9 | 682.6 | 668.8 | 689.5 | 682.6 | 696.4 |
| LT | 661.9 | 682.6 | 668.8 | 689.5 | 682.6 | 696.4 | |
| Fbry (e/D = 2.0), MPa | L | 786 | 806.7 | 799.8 | 820.5 | 806.7 | 827.4 |
| LT | 786 | 806.7 | 799.8 | 820.5 | 806.7 | 827.4 | |
| e, % | L | 8 | 8 | 8 | 8 | 8 | 8 |
| LT | … | … | … | … | … | … | |
| E, GPa | 71.02 | 71.02 | 71.02 | 71.02 | 71.02 | 71.02 | |
| Ec, GPa | 73.77 | 73.77 | 73.77 | 73.77 | 73.77 | 73.77 | |
| G, GPa | 26.89 | 26.89 | 26.89 | 26.89 | 26.89 | 26.89 | |
| ν | 0.33 | 0.33 | 0.33 | 0.33 | 0.33 | 0.33 | |
| ρ, kg/m³ | 2851 | 2851 | 2851 | 2851 | 2851 | 2851 | |
Effect of Temperature
The handbook maps no temperature-effect figure to this table.
Other 7055 Tables
- 7055-T76511 Extrusion (Table 3.7.5.0(c))
- 7055-T7751 Plate (Table 3.7.5.0(d))
- 7055-T77511 Extrusion (Table 3.7.5.0(e))
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.