7175-T74a,b Die forging: 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 | 7175 / T74a,b / Die forging |
| Specifications | AMS 4149 |
| Handbook | MIL-HDBK-5J, 31 January 2003, section 3.7.8.0, Table 3.7.8.0(b) (pdf page 440 of the chapter file) |
| Dimension bands | 6 |
| Density | 2796 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 | 0–1 in (0–25.4 mm) | 1.001–2.000 in (25.43–50.8 mm) | 2.001–3.000 in (50.83–76.2 mm) | 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) | ||
|---|---|---|---|---|---|---|---|---|
| Specification | AMS 4149 | AMS 4149 | AMS 4149 | AMS 4149 | AMS 4149 | AMS 4149 | ||
| Basis | S | A | B | S | S | S | S | |
| Ftu, MPa | L | 524 | 510.2 | 530.9 | 524 | 503.3 | 482.6 | 468.8 |
| LT | 489.5 | 489.5 | … | 489.5 | 482.6 | 468.8 | 448.2 | |
| ST | … | … | … | … | … | … | … | |
| Fty, MPa | L | 455.1 | 441.3 | 461.9 | 455.1 | 434.4 | 420.6 | 399.9 |
| LT | 427.5 | 427.5 | … | 427.5 | 413.7 | 399.9 | 379.2 | |
| ST | … | … | … | … | … | … | … | |
| Fcy, MPa | L | 461.9 | 448.2 | 468.8 | 461.9 | … | … | … |
| LT | … | … | … | … | … | … | … | |
| ST | 434.4 | 420.6 | 441.3 | 434.4 | … | … | … | |
| Fsu, MPa | L | 296.5 | 289.6 | 303.4 | 296.5 | … | … | … |
| LT | 296.5 | 289.6 | … | 296.5 | … | … | … | |
| ST | 296.5 | 289.6 | 303.4 | 296.5 | … | … | … | |
| Fbru (e/D = 1.5), MPa | L | 730.8 | 723.9 | 751.5 | 730.8 | … | … | … |
| LT | 730.8 | 723.9 | … | 730.8 | … | … | … | |
| ST | 730.8 | 723.9 | 751.5 | 730.8 | … | … | … | |
| Fbru (e/D = 2.0), MPa | L | 965.3 | 944.6 | 979.1 | 965.3 | … | … | … |
| LT | 965.3 | 944.6 | … | 965.3 | … | … | … | |
| ST | 965.3 | 944.6 | 979.1 | 965.3 | … | … | … | |
| Fbry (e/D = 1.5), MPa | L | 592.9 | 579.2 | 606.7 | 592.9 | … | … | … |
| LT | 592.9 | 579.2 | … | 592.9 | … | … | … | |
| ST | 592.9 | 579.2 | 606.7 | 592.9 | … | … | … | |
| Fbry (e/D = 2.0), MPa | L | 703.3 | 682.6 | 710.2 | 703.3 | … | … | … |
| LT | 703.3 | 682.6 | … | 703.3 | … | … | … | |
| ST | 703.3 | 682.6 | 710.2 | 703.3 | … | … | … | |
| e, % | L | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| LT | 4 | 4 | … | 4 | 4 | 4 | 4 | |
| ST | … | … | … | … | … | … | … | |
| E, GPa | 70.33 | 70.33 | 70.33 | 70.33 | 70.33 | 70.33 | 70.33 | |
| Ec, GPa | 73.77 | 73.77 | 73.77 | 73.77 | 73.77 | 73.77 | 73.77 | |
| G, GPa | 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 | |
| ρ, kg/m³ | 2796 | 2796 | 2796 | 2796 | 2796 | 2796 | 2796 | |
Effect of Temperature
The handbook maps no temperature-effect figure to this table.
Other 7175 Tables
- 7175-T66 Die forging (Table 3.7.8.0(b))
- 7175-T73511 Extrusion (Table 3.7.8.0(d))
- 7175-T74 Hand forging (Table 3.7.8.0(c))
- 7175-T7452 Hand forging (Table 3.7.8.0(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.