7055-T77511 Extrusion: MIL-HDBK-5J Design Allowables
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| Material class | Aluminum |
| Alloy / temper / form | 7055 / T77511 / Extrusion |
| Specifications | AMS 4337 |
| Handbook | MIL-HDBK-5J, 31 January 2003, section 3.7.5.0, Table 3.7.5.0(e) (pdf page 367 of the chapter file) |
| Dimension bands | 1 |
| 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 | 0.500–1.500 in (12.7–38.1 mm) | ||
|---|---|---|---|
| Specification | AMS 4337 | ||
| Basis | A | B | |
| Ftu, MPa | L | 648.1 | 655 |
| LT | 606.7 | 620.5 | |
| Fty, MPa | L | 620.5 | 641.2 |
| LT | 579.2 | 606.7 | |
| Fcy, MPa | L | 634.3 | 648.1 |
| LT | 613.6 | 634.3 | |
| Fsu, MPa | L | 330.9 | 337.8 |
| LT | 330.9 | 337.8 | |
| Fbru (e/D = 1.5), MPa | L | 882.5 | 903.2 |
| LT | 882.5 | 903.2 | |
| Fbru (e/D = 2.0), MPa | L | 1151 | 1165 |
| LT | 1151 | 1165 | |
| Fbry (e/D = 1.5), MPa | L | 751.5 | 779.1 |
| LT | 751.5 | 779.1 | |
| Fbry (e/D = 2.0), MPa | L | 903.2 | 930.8 |
| LT | 903.2 | 930.8 | |
| e, % | L | 9 | 9 |
| LT | 5 | 5 | |
| E, GPa | 71.71 | 71.71 | |
| Ec, GPa | 75.84 | 75.84 | |
| ν | 0.33 | 0.33 | |
| ρ, kg/m³ | 2851 | 2851 | |
Effect of Temperature
The handbook maps no temperature-effect figure to this table.
Other 7055 Tables
- 7055-T74511 Extrusion (Table 3.7.5.0(b))
- 7055-T76511 Extrusion (Table 3.7.5.0(c))
- 7055-T7751 Plate (Table 3.7.5.0(d))
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from the chapter tables; check the printed table before use in a certified analysis, and note that MIL-HDBK-5J was superseded by MMPDS, whose later editions may differ.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.