2026-T3511 Extrusions: MIL-HDBK-5J Design Allowables
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| Material class | Aluminum |
| Alloy / temper / form | 2026 / T3511 / Extrusions |
| Specifications | AMS 4338 |
| Handbook | MIL-HDBK-5J, 31 January 2003, section 3.2.5.0, Table 3.2.5.0(b) (pdf page 153 of the chapter file) |
| Dimension bands | 5 |
| Density | 2768 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) | 0.500–1.499 in (12.7–38.07 mm) | 1.500–2.249 in (38.1–57.12 mm) | 2.250–3.250 in (57.15–82.55 mm) | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Specification | AMS 4338 | AMS 4338 | AMS 4338 | AMS 4338 | AMS 4338 | |||||
| Basis | A | B | A | B | A | B | A | B | S | |
| Ftu, MPa | L | 455.1 | 475.7 | 482.6 | 496.4 | 496.4 | 517.1 | 503.3 | 524 | 503.3 |
| LT | 399.9 | 420.6 | 427.5 | 441.3 | 455.1 | 461.9 | 441.3 | 461.9 | 420.6 | |
| Fty, MPa | L | 330.9 | 351.6 | 358.5 | 365.4 | 365.4 | 386.1 | 372.3 | 393 | 372.3 |
| LT | 282.7 | 303.4 | 310.3 | 317.2 | 317.2 | 330.9 | 303.4 | 337.8 | 289.6 | |
| Fcy, MPa | L | 296.5 | 310.3 | 317.2 | 324.1 | 324.1 | 324.1 | 337.8 | 358.5 | 344.7 |
| LT | 289.6 | 310.3 | 317.2 | 317.2 | 317.2 | 337.8 | 310.3 | 324.1 | 296.5 | |
| Fsu, MPa | L | 255.1 | 268.9 | 255.1 | 262 | 220.6 | 227.5 | 220.6 | 227.5 | 220.6 |
| LT | 255.1 | 268.9 | 255.1 | 262 | 220.6 | 227.5 | 220.6 | 227.5 | 220.6 | |
| Fbru (e/D = 1.5), MPa | L | 620.5 | 648.1 | 634.3 | 655 | 599.8 | 620.5 | 586.1 | 613.6 | 586.1 |
| LT | 620.5 | 648.1 | 634.3 | 655 | 599.8 | 620.5 | 586.1 | 613.6 | 586.1 | |
| Fbru (e/D = 2.0), MPa | L | 772.2 | 806.7 | 779.1 | 806.7 | 751.5 | 786 | 744.6 | 772.2 | 723.9 |
| LT | 772.2 | 806.7 | 779.1 | 806.7 | 751.5 | 786 | 744.6 | 772.2 | 723.9 | |
| Fbry (e/D = 1.5), MPa | L | 427.5 | 455.1 | 455.1 | 461.9 | 420.6 | 441.3 | 420.6 | 441.3 | 420.6 |
| LT | 427.5 | 455.1 | 455.1 | 461.9 | 420.6 | 441.3 | 420.6 | 441.3 | 420.6 | |
| Fbry (e/D = 2.0), MPa | L | 524 | 558.5 | 558.5 | 572.3 | 524 | 558.5 | 524 | 551.6 | 524 |
| LT | 524 | 558.5 | 558.5 | 572.3 | 524 | 558.5 | 524 | 551.6 | 524 | |
| e, % | L | 11 | 11 | 12 | 12 | 11 | 11 | 11 | 11 | 10 |
| LT | … | … | … | … | 8 | 8 | 8 | 8 | 8 | |
| E, GPa | 73.77 | 73.77 | 73.77 | 73.77 | 73.77 | 73.77 | 73.77 | 73.77 | 73.77 | |
| Ec, GPa | 75.15 | 75.15 | 75.15 | 75.15 | 75.15 | 75.15 | 75.15 | 75.15 | 75.15 | |
| G, GPa | 27.58 | 27.58 | 27.58 | 27.58 | 27.58 | 27.58 | 27.58 | 27.58 | 27.58 | |
| ν | 0.33 | 0.33 | 0.33 | 0.33 | 0.33 | 0.33 | 0.33 | 0.33 | 0.33 | |
| ρ, kg/m³ | 2768 | 2768 | 2768 | 2768 | 2768 | 2768 | 2768 | 2768 | 2768 | |
Effect of Temperature
The handbook maps no temperature-effect figure to this table.
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.