6061-T6 and T652 Die forging: MIL-HDBK-5J Design Allowables
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| Material class | Aluminum |
| Alloy / temper / form | 6061 / T6 and T652 / Die forging |
| Specifications | AMS 4127, MIL-A-22771, and QQ-A-367 |
| Handbook | MIL-HDBK-5J, 31 January 2003, section 3.6.2.0, Table 3.6.2.0(e) (pdf page 270 of the chapter file) |
| Dimension bands | 1 |
| Density | 0.098 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 | 0–4 in | |
|---|---|---|
| Specification | AMS 4127, MIL-A-22771, and QQ-A-367 | |
| Basis | S | |
| Ftu, ksi | L | 38 |
| LT | 38 | |
| Fty, ksi | L | 35 |
| LT | 35 | |
| Fcy, ksi | L | 36 |
| LT | 36 | |
| Fsu, ksi | L | 25 |
| LT | 25 | |
| Fbru (e/D = 1.5), ksi | L | 61 |
| LT | 61 | |
| Fbru (e/D = 2.0), ksi | L | 76 |
| LT | 76 | |
| Fbry (e/D = 1.5), ksi | L | 54 |
| LT | 54 | |
| Fbry (e/D = 2.0), ksi | L | 61 |
| LT | 61 | |
| e, % | L | 7 |
| LT | 5 | |
| E, Msi | 9.9 | |
| Ec, Msi | 10.1 | |
| G, Msi | 3.8 | |
| ν | 0.33 | |
| ρ, lb/in3 | 0.098 | |
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
Elongation and exposure effects
| °F | F_tu | F_ty |
|---|---|---|
| -300 | 125.5 | 115 |
| -200 | 114.1 | 108.1 |
| -100 | 108.4 | 105.7 |
| 0 | 103.9 | 102.9 |
| 100 | 98.1 | 98.4 |
| 200 | 91 | 91.9 |
| 300 | 80.1 | 83.2 |
| 400 | 63.8 | 69 |
| 500 | 40.7 | 44.1 |
| 600 | 21.3 | 19.1 |
| 700 | 8.2 | |
| 800 | 4 |
Factors in percent of the room-temperature allowable.
Other 6061 Tables
- 6061-T4 Drawn tube (Table 3.6.2.0(c))
- 6061-T4 Rolled, drawn, or cold-finished rod and special shapes (Table 3.6.2.0(d))
- 6061-T4 Sheet (Table 3.6.2.0(b))
- 6061-T4, T4510, / and T4511 Extruded rod, bar, and shapes (Table 3.6.2.0(g))
- 6061-T42 Drawn tube (Table 3.6.2.0(c))
- 6061-T42 Extruded rod, bar, and shapes (Table 3.6.2.0(g))
- 6061-T42 Plate (Table 3.6.2.0(b))
- 6061-T42 Rolled, drawn, or cold-finished rod and special shapes (Table 3.6.2.0(d))
- 6061-T42 Sheet (Table 3.6.2.0(b))
- 6061-T451 Plate (Table 3.6.2.0(b))
- 6061-T451 Rolled, drawn, or cold-finished rod and special shapes (Table 3.6.2.0(d))
- 6061-T6 Rolled, drawn, or cold-finished rod and special shapes (Table 3.6.2.0(d))
- 6061-T6 and T62 Sheet (Table 3.6.2.0(b))
- 6061-T6, T6510, and T6511 Extruded rod, bar, and shapes (Table 3.6.2.0(g))
- 6061-T62 Extruded rod, bar, and shapes (Table 3.6.2.0(g))
- 6061-T62 Rolled, drawn, or cold-finished rod and special shapes (Table 3.6.2.0(d))
- 6061-T651 Rolled, drawn, or cold-finished rod and special shapes (Table 3.6.2.0(d))
- 6061-T651 and T62 Plate (Table 3.6.2.0(b))
- 6061-T6a and T652 Hand forging (Table 3.6.2.0(f))
- 6061-T6b and T62 Drawn tube (Table 3.6.2.0(c))
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.