A-286-Solution treated and aged Bar: MIL-HDBK-5J Design Allowables
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| Material class | Heat-Resistant |
| Alloy / temper / form | A-286 / Solution treated and aged / Bar |
| Specifications | AMS 5731 / AMS 5732; AMS 5734 / AMS 5737 |
| Handbook | MIL-HDBK-5J, 31 January 2003, section 6.2.1.0, Table 6.2.1.0(b) (pdf page 6 of the chapter file) |
| Dimension bands | 4 |
| Density | 0.287 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 | 0.000–2.499 in | 0.000–2.499 in | 2.500–5.000 in | 2.500–5.000 in | |
|---|---|---|---|---|---|
| Specification | AMS 5731 / AMS 5732 | AMS 5734 / AMS 5737 | AMS 5731 / AMS 5732 | AMS 5734 / AMS 5737 | |
| Basis | S | S | S | S | |
| Ftu, ksi | L | 130 | 140 | 130 | 140 |
| LT | 130 | 140 | 130 | 140 | |
| ST | … | … | 130 | 140 | |
| Fty, ksi | L | 85 | 95 | 85 | 95 |
| LT | 85 | 95 | 85 | 95 | |
| ST | … | … | 85 | 95 | |
| Fcy, ksi | L | 85 | 95 | 85 | 95 |
| LT | … | … | … | … | |
| ST | … | … | … | … | |
| Fsu, ksi | L | 85 | 91 | 85 | 91 |
| LT | 85 | 91 | 85 | 91 | |
| ST | … | … | 85 | 91 | |
| Fbru (e/D = 1.5), ksi | L | 195 | 210 | 195 | 210 |
| LT | 195 | 210 | 195 | 210 | |
| ST | … | … | 195 | 210 | |
| Fbru (e/D = 2.0), ksi | L | 247 | 266 | 247 | 266 |
| LT | 247 | 266 | 247 | 266 | |
| ST | … | … | 247 | 266 | |
| Fbry (e/D = 1.5), ksi | L | 127 | 142 | 127 | 142 |
| LT | 127 | 142 | 127 | 142 | |
| ST | … | … | 127 | 142 | |
| Fbry (e/D = 2.0), ksi | L | 153 | 171 | 153 | 171 |
| LT | 153 | 171 | 153 | 171 | |
| ST | … | … | 153 | 171 | |
| e, % | L | 15 | 12 | 15 | 12 |
| LT | 15 | 12 | 15 | 12 | |
| ST | … | … | 15 | 12 | |
| E, Msi | 29.1 | 29.1 | 29.1 | 29.1 | |
| Ec, Msi | 29.1 | 29.1 | 29.1 | 29.1 | |
| G, Msi | 11.1 | 11.1 | 11.1 | 11.1 | |
| ν | 0.31 | 0.31 | 0.31 | 0.31 | |
| ρ, lb/in3 | 0.287 | 0.287 | 0.287 | 0.287 | |
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
Moduli at temperature
| °F | F_tu | F_ty | F_bru | F_bry |
|---|---|---|---|---|
| -300 | 124.8 | 112.5 | ||
| -200 | 115.8 | 107.1 | ||
| -100 | 108.7 | 103.7 | ||
| 0 | 101.6 | 101.6 | ||
| 100 | 98.4 | 98.4 | 98.5 | 98.5 |
| 200 | 96.1 | 96.1 | 94.9 | 94.9 |
| 300 | 93.8 | 93.8 | 89.9 | 92.5 |
| 400 | 91.5 | 91.5 | 86.6 | 90.5 |
| 500 | 89.5 | 89.5 | 84.6 | 89.9 |
| 600 | 88 | 88 | 84.4 | 89.4 |
| 700 | 87.6 | 87.6 | 84 | 88.2 |
| 800 | 86.5 | 92.3 | 83.5 | 87.2 |
| 1000 | 82.4 | 80.5 | 80.5 | |
| 1200 | 67.5 | 67.5 |
Factors in percent of the room-temperature allowable.
Other A-286 Tables
- A-286-Solution treated and aged Sheet, strip, / and plate (Table 6.2.1.0(b))
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.