2024-T42 Extruded bar, rod, and shapes: MIL-HDBK-5J Design Allowables
show US units (ksi, Msi, lb/in³) open the MIL-HDBK-5J tool compare against temperature find alternatives
| Material class | Aluminum |
| Alloy / temper / form | 2024 / T42 / Extruded bar, rod, and shapes |
| Specifications | AMS-QQ-A-200/3 |
| Handbook | MIL-HDBK-5J, 31 January 2003, section 3.2.3.0, Table 3.2.3.0(j) (pdf page 86 of the chapter file) |
| Dimension bands | 10 |
| 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), area 0–25 in2 (0–16130 mm²) | 0.250–0.499 in (6.35–12.67 mm), area 0–25 in2 (0–16130 mm²) | 0.500–0.749 in (12.7–19.02 mm), area 0–25 in2 (0–16130 mm²) | 0.750–0.999 in (19.05–25.37 mm), area 0–25 in2 (0–16130 mm²) | 1.000–1.249 in (25.4–31.72 mm), area 0–25 in2 (0–16130 mm²) | 1.250–1.499 in (31.75–38.07 mm), area 0–25 in2 (0–16130 mm²) | 1.500–1.749 in (38.1–44.42 mm), area 0–25 in2 (0–16130 mm²) | 1.750–1.999 in (44.45–50.77 mm), area 0–25 in2 (0–16130 mm²) | 2.000–2.249 in (50.8–57.12 mm), area 0–25 in2 (0–16130 mm²) | 2.250–2.499 in (57.15–63.47 mm), area 0–25 in2 (0–16130 mm²) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Specification | AMS-QQ-A-200/3 | AMS-QQ-A-200/3 | AMS-QQ-A-200/3 | AMS-QQ-A-200/3 | AMS-QQ-A-200/3 | AMS-QQ-A-200/3 | AMS-QQ-A-200/3 | AMS-QQ-A-200/3 | AMS-QQ-A-200/3 | AMS-QQ-A-200/3 | |
| Basis | S | S | S | S | S | S | S | S | S | S | |
| Ftu, MPa | L | 393 | 393 | 393 | 393 | 393 | 393 | 393 | 393 | 393 | 393 |
| LT | 379.2 | 372.3 | 358.5 | 351.6 | 337.8 | 324.1 | 310.3 | 296.5 | 282.7 | 268.9 | |
| Fty, MPa | L | 262 | 262 | 262 | 262 | 262 | 262 | 262 | 262 | 262 | 262 |
| LT | 248.2 | 241.3 | 234.4 | 227.5 | 220.6 | 213.7 | 206.8 | 199.9 | 193.1 | 186.2 | |
| Fcy, MPa | L | 262 | 262 | 262 | 262 | 262 | 262 | 262 | 262 | 262 | 262 |
| LT | 268.9 | 262 | 255.1 | 248.2 | 241.3 | 234.4 | 227.5 | 213.7 | 206.8 | 199.9 | |
| Fsu, MPa | L | 199.9 | 199.9 | 199.9 | 199.9 | 199.9 | 199.9 | 193.1 | 186.2 | 179.3 | 165.5 |
| LT | 199.9 | 199.9 | 199.9 | 199.9 | 199.9 | 199.9 | 193.1 | 186.2 | 179.3 | 165.5 | |
| Fbru (e/D = 1.5), MPa | L | 558.5 | 551.6 | 544.7 | 530.9 | 517.1 | 510.2 | 489.5 | 475.7 | 461.9 | 441.3 |
| LT | 558.5 | 551.6 | 544.7 | 530.9 | 517.1 | 510.2 | 489.5 | 475.7 | 461.9 | 441.3 | |
| Fbru (e/D = 2.0), MPa | L | 682.6 | 675.7 | 668.8 | 655 | 641.2 | 627.4 | 613.6 | 592.9 | 572.3 | 558.5 |
| LT | 682.6 | 675.7 | 668.8 | 655 | 641.2 | 627.4 | 613.6 | 592.9 | 572.3 | 558.5 | |
| Fbry (e/D = 1.5), MPa | L | 386.1 | 379.2 | 365.4 | 351.6 | 337.8 | 324.1 | 303.4 | 282.7 | 268.9 | 248.2 |
| LT | 386.1 | 379.2 | 365.4 | 351.6 | 337.8 | 324.1 | 303.4 | 282.7 | 268.9 | 248.2 | |
| Fbry (e/D = 2.0), MPa | L | 475.7 | 461.9 | 448.2 | 434.4 | 420.6 | 406.8 | 386.1 | 365.4 | 344.7 | 324.1 |
| LT | 475.7 | 461.9 | 448.2 | 434.4 | 420.6 | 406.8 | 386.1 | 365.4 | 344.7 | 324.1 | |
| e, % | L | 12 | 12 | 12 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| LT | … | … | … | … | … | … | … | … | … | … | |
| E, GPa | 74.46 | 74.46 | 74.46 | 74.46 | 74.46 | 74.46 | 74.46 | 74.46 | 74.46 | 74.46 | |
| Ec, GPa | 75.84 | 75.84 | 75.84 | 75.84 | 75.84 | 75.84 | 75.84 | 75.84 | 75.84 | 75.84 | |
| G, GPa | 28.27 | 28.27 | 28.27 | 28.27 | 28.27 | 28.27 | 28.27 | 28.27 | 28.27 | 28.27 | |
| ν | 0.33 | 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 | 2768 | |
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
| °C | F_tu | F_ty |
|---|---|---|
| 38 | 99.4 | 100 |
| 93 | 95.8 | 98 |
| 149 | 88.9 | 95 |
| 204 | 71.4 | 84 |
| 26 | 37.9 | 47.6 |
| 316 | 20.3 | 22.8 |
| 371 | 11.8 | 12.9 |
Factors in percent of the room-temperature allowable.
Other 2024 Tables
- 2024-T3 Clad flat sheet and plate (Table 3.2.3.0(e))
- 2024-T3 Drawn tubing (Table 3.2.3.0(g))
- 2024-T3 Sheet (Table 3.2.3.0(b))
- 2024-T3, T3510, and T3511 Extruded bar, rod, and shapes (Table 3.2.3.0(j))
- 2024-T351 Bar and rod; rolled, drawn, or cold-finished (Table 3.2.3.0(i))
- 2024-T351 Clad flat sheet and plate (Table 3.2.3.0(e))
- 2024-T351 Plate (Table 3.2.3.0(b))
- 2024-T361 Bar and rod; rolled, drawn, or cold-finished (Table 3.2.3.0(i))
- 2024-T361 Clad flat sheet and plate (Table 3.2.3.0(e))
- 2024-T361 Plate (Table 3.2.3.0(b))
- 2024-T361 Sheet (Table 3.2.3.0(b))
- 2024-T4 Bar and rod; rolled, drawn, or cold-finished (Table 3.2.3.0(i))
- 2024-T4 Clad coiled sheet (Table 3.2.3.0(e))
- 2024-T4 Coiled Sheet (Table 3.2.3.0(b))
- 2024-T42 Bar and rod; rolled, drawn, or cold-finished (Table 3.2.3.0(i))
- 2024-T42 Clad flat sheet and plate (Table 3.2.3.0(e))
- 2024-T42 Drawn tubing (Table 3.2.3.0(g))
- 2024-T42 Flat Sheet and Plate (Table 3.2.3.0(b))
- 2024-T6 Bar and rod; rolled, drawn, or cold finished (Table 3.2.3.0(i))
- 2024-T62 Bar and rod; rolled, drawn, or cold finished (Table 3.2.3.0(i))
- 2024-T62 Clad flat sheet and plate (Table 3.2.3.0(e))
- 2024-T62 Flat Sheet and Plate (Table 3.2.3.0(b))
- 2024-T72 Clad flat sheet and plate (Table 3.2.3.0(e))
- 2024-T72 Flat Sheet and Plate (Table 3.2.3.0(b))
- 2024-T81 Clad flat sheet and plate (Table 3.2.3.0(e))
- 2024-T81 Drawn tubing (Table 3.2.3.0(g))
- 2024-T81 Sheet (Table 3.2.3.0(b))
- 2024-T81, T8510, and T8511 Extruded bar, rod, and shapes (Table 3.2.3.0(j))
- 2024-T851 Bar and rod; rolled, drawn, or cold finished (Table 3.2.3.0(i))
- 2024-T851 Clad flat sheet and plate (Table 3.2.3.0(e))
- 2024-T851 Plate (Table 3.2.3.0(b))
- 2024-T861 Clad flat sheet and plate (Table 3.2.3.0(e))
- 2024-T861 Plate (Table 3.2.3.0(b))
- 2024-T861 Sheet (Table 3.2.3.0(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.