7049-T7351 Plate: MIL-HDBK-5J Design Allowables
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| Material class | Aluminum |
| Alloy / temper / form | 7049 / T7351 / Plate |
| Specifications | AMS 4200 |
| Handbook | MIL-HDBK-5J, 31 January 2003, section 3.7.3.0, Table 3.7.3.0(b) (pdf page 306 of the chapter file) |
| Dimension bands | 8 |
| Density | 0.103 lb/in3 |
Design Mechanical and Physical Properties (room temperature)
As printed in the handbook table. 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 | 0.750–1.000 in | 1.001–1.500 in | 1.501–2.000 in | 2.001–2.500 in | 2.501–3.000 in | 3.001–4.000 in | 4.001–4.500 in | 4.501–5.000 in | |
|---|---|---|---|---|---|---|---|---|---|
| Specification | AMS 4200 | AMS 4200 | AMS 4200 | AMS 4200 | AMS 4200 | AMS 4200 | AMS 4200 | AMS 4200 | |
| Basis | S | S | S | S | S | S | S | S | |
| Ftu, ksi | L | … | … | 72 | 72 | 71 | 70 | 68 | 68 |
| LT | 74 | 73 | 73 | 73 | 72 | 70 | 68 | 68 | |
| ST | … | … | 69 | 69 | 68 | 65 | 63 | 63 | |
| Fty, ksi | L | … | … | 64 | 63 | 62 | 60 | 58 | 58 |
| LT | 65 | 64 | 64 | 63 | 62 | 60 | 58 | 58 | |
| ST | … | … | 59 | 58 | 57 | 56 | 54 | 54 | |
| Fcy, ksi | L | … | … | 64 | 63 | 62 | 60 | 58 | … |
| LT | … | … | 69 | 68 | 67 | 64 | 62 | … | |
| ST | … | … | 69 | 68 | 67 | 64 | 62 | … | |
| Fsu, ksi | L | … | … | 41 | 41 | 41 | 39 | 38 | … |
| LT | … | … | 41 | 41 | 41 | 39 | 38 | … | |
| ST | … | … | 41 | 41 | 41 | 39 | 38 | … | |
| Fbru (e/D = 1.5), ksi | L | … | … | … | 114 | 112 | 109 | 106 | … |
| LT | … | … | … | 114 | 112 | 109 | 106 | … | |
| ST | … | … | … | 114 | 112 | 109 | 106 | … | |
| Fbru (e/D = 2.0), ksi | L | … | … | … | 146 | 144 | 140 | 136 | … |
| LT | … | … | … | 146 | 144 | 140 | 136 | … | |
| ST | … | … | … | 146 | 144 | 140 | 136 | … | |
| Fbry (e/D = 1.5), ksi | L | … | … | … | 91 | 89 | 86 | 83 | … |
| LT | … | … | … | 91 | 89 | 86 | 83 | … | |
| ST | … | … | … | 91 | 89 | 86 | 83 | … | |
| Fbry (e/D = 2.0), ksi | L | … | … | … | 106 | 104 | 101 | 97 | … |
| LT | … | … | … | 106 | 104 | 101 | 97 | … | |
| ST | … | … | … | 106 | 104 | 101 | 97 | … | |
| e, % | L | … | … | … | … | … | 6 | 6 | 5 |
| LT | 8 | 8 | 7 | 6 | 6 | 5 | 5 | 5 | |
| ST | … | … | … | … | … | 2 | 2 | 2 | |
| E, Msi | … | … | 10.1 | 10.1 | 10.1 | 10.1 | 10.1 | 10.1 | |
| Ec, Msi | … | … | 10.4 | 10.4 | 10.4 | 10.4 | 10.4 | 10.4 | |
| G, Msi | … | … | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | |
| ν | … | … | 0.33 | 0.33 | 0.33 | 0.33 | 0.33 | 0.33 | |
| ρ, lb/in3 | … | … | 0.103 | 0.103 | 0.103 | 0.103 | 0.103 | 0.103 | |
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
| °F | F_tu | F_ty | F_cy |
|---|---|---|---|
| 100 | 97.6 | 99 | 99 |
| 200 | 88 | 93.2 | 93.2 |
| 300 | 74.4 | 80.6 | 80.6 |
| 400 | 52.7 | 58.7 | 58.7 |
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.