7040-T7451 Plate: MIL-HDBK-5J Design Allowables
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| Material class | Aluminum |
| Alloy / temper / form | 7040 / T7451 / Plate |
| Specifications | AMS 4211 |
| Handbook | MIL-HDBK-5J, 31 January 2003, section 3.7.2.0, Table 3.7.2.0(b) (pdf page 303 of the chapter file) |
| Dimension bands | 6 |
| Density | 2823 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 | 3.001–4.000 in (76.23–101.6 mm) | 4.001–5.000 in (101.6–127 mm) | 5.001–6.000 in (127–152.4 mm) | 6.001–7.000 in (152.4–177.8 mm) | 7.001–8.000 in (177.8–203.2 mm) | 8.001–8.500 in (203.2–215.9 mm) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Specification | AMS 4211 | AMS 4211 | AMS 4211 | AMS 4211 | AMS 4211 | AMS 4211 | |||||||
| Basis | A | B | A | B | A | B | A | B | A | B | A | B | |
| Ftu, MPa | L | 496.4 | 496.4 | 489.5 | 496.4 | 482.6 | 489.5 | 475.7 | 482.6 | 468.8 | 482.6 | 468.8 | 482.6 |
| LT | 496.4 | 510.2 | 489.5 | 503.3 | 482.6 | 496.4 | 475.7 | 482.6 | 468.8 | 475.7 | 468.8 | 475.7 | |
| ST | 475.7 | 482.6 | 468.8 | 482.6 | 468.8 | 475.7 | 455.1 | 461.9 | 455.1 | 461.9 | 455.1 | 461.9 | |
| Fty, MPa | L | 427.5 | 448.2 | 427.5 | 441.3 | 427.5 | 441.3 | 427.5 | 427.5 | 420.6 | 427.5 | 420.6 | 434.4 |
| LT | 427.5 | 448.2 | 427.5 | 448.2 | 420.6 | 434.4 | 413.7 | 427.5 | 413.7 | 420.6 | 406.8 | 420.6 | |
| ST | 406.8 | 420.6 | 399.9 | 420.6 | 399.9 | 420.6 | 393 | 399.9 | 393 | 399.9 | 386.1 | 399.9 | |
| Fcy, MPa | L | 413.7 | 434.4 | 413.7 | 427.5 | 406.8 | 420.6 | 399.9 | 413.7 | 406.8 | 413.7 | 406.8 | 420.6 |
| LT | 441.3 | 461.9 | 441.3 | 461.9 | 434.4 | 455.1 | 427.5 | 441.3 | 427.5 | 441.3 | 420.6 | 434.4 | |
| ST | 434.4 | 455.1 | 434.4 | 455.1 | 427.5 | 448.2 | 420.6 | 434.4 | 420.6 | 434.4 | 413.7 | 434.4 | |
| Fsu, MPa | L | 310.3 | 324.1 | 303.4 | 317.2 | 303.4 | 310.3 | 296.5 | 303.4 | 296.5 | 303.4 | 296.5 | 303.4 |
| LT | 310.3 | 324.1 | 303.4 | 317.2 | 303.4 | 310.3 | 296.5 | 303.4 | 296.5 | 303.4 | 296.5 | 303.4 | |
| ST | 310.3 | 324.1 | 303.4 | 317.2 | 303.4 | 310.3 | 296.5 | 303.4 | 296.5 | 303.4 | 296.5 | 303.4 | |
| Fbru (e/D = 1.5), MPa | L | 786 | 806.7 | 772.2 | 792.9 | 758.4 | 786 | 744.6 | 758.4 | 723.9 | 744.6 | 723.9 | 730.8 |
| LT | 786 | 806.7 | 772.2 | 792.9 | 758.4 | 786 | 744.6 | 758.4 | 723.9 | 744.6 | 723.9 | 730.8 | |
| ST | 786 | 806.7 | 772.2 | 792.9 | 758.4 | 786 | 744.6 | 758.4 | 723.9 | 744.6 | 723.9 | 730.8 | |
| Fbru (e/D = 2.0), MPa | L | 999.7 | 1034 | 986 | 1014 | 965.3 | 999.7 | 944.6 | 965.3 | 923.9 | 937.7 | 917 | 923.9 |
| LT | 999.7 | 1034 | 986 | 1014 | 965.3 | 999.7 | 944.6 | 965.3 | 923.9 | 937.7 | 917 | 923.9 | |
| ST | 999.7 | 1034 | 986 | 1014 | 965.3 | 999.7 | 944.6 | 965.3 | 923.9 | 937.7 | 917 | 923.9 | |
| Fbry (e/D = 1.5), MPa | L | 641.2 | 668.8 | 641.2 | 668.8 | 634.3 | 661.9 | 620.5 | 641.2 | 620.5 | 634.3 | 606.7 | 627.4 |
| LT | 641.2 | 668.8 | 641.2 | 668.8 | 634.3 | 661.9 | 620.5 | 641.2 | 620.5 | 634.3 | 606.7 | 627.4 | |
| ST | 641.2 | 668.8 | 641.2 | 668.8 | 634.3 | 661.9 | 620.5 | 641.2 | 620.5 | 634.3 | 606.7 | 627.4 | |
| Fbry (e/D = 2.0), MPa | L | 786 | 820.5 | 786 | 820.5 | 772.2 | 806.7 | 758.4 | 779.1 | 758.4 | 779.1 | 744.6 | 772.2 |
| LT | 786 | 820.5 | 786 | 820.5 | 772.2 | 806.7 | 758.4 | 779.1 | 758.4 | 779.1 | 744.6 | 772.2 | |
| ST | 786 | 820.5 | 786 | 820.5 | 772.2 | 806.7 | 758.4 | 779.1 | 758.4 | 779.1 | 744.6 | 772.2 | |
| e, % | L | 9 | 9 | 9 | 9 | 8 | 8 | 7 | … | 6 | … | 6 | … |
| LT | 6 | 6 | 5 | 5 | 4 | 4 | 4 | … | 4 | … | 4 | … | |
| ST | 3 | 3 | 3 | 3 | 3 | 3 | 3 | … | 3 | … | 3 | … | |
| E, GPa | 71.71 | 71.71 | 71.71 | 71.71 | 71.71 | 71.71 | 71.71 | 71.71 | 71.71 | 71.71 | 71.71 | 71.71 | |
| Ec, GPa | 73.08 | 73.08 | 73.08 | 73.08 | 73.08 | 73.08 | 73.08 | 73.08 | 73.08 | 73.08 | 73.08 | 73.08 | |
| G, GPa | 26.89 | 26.89 | 26.89 | 26.89 | 26.89 | 26.89 | 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 | 0.33 | 0.33 | 0.33 | 0.33 | 0.33 | 0.33 | |
| ρ, kg/m³ | 2823 | 2823 | 2823 | 2823 | 2823 | 2823 | 2823 | 2823 | 2823 | 2823 | 2823 | 2823 | |
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
| °C | F_tu | F_ty |
|---|---|---|
| -18 | 104.2 | 103.2 |
| 38 | 97.5 | 98.2 |
| 93 | 87.9 | 91.3 |
| 149 | 75.8 | 82.3 |
Factors in percent of the room-temperature allowable.
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.