7175-T74 Hand 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 / T74 / Hand forging |
| Specifications | AMS 4149 and AMS-A-22771 |
| Handbook | MIL-HDBK-5J, 31 January 2003, section 3.7.8.0, Table 3.7.8.0(c) (pdf page 441 of the chapter file) |
| Dimension bands | 5 |
| 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 | 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 and AMS-A-22771 | AMS 4149 and AMS-A-22771 | AMS 4149 and AMS-A-22771 | AMS 4149 and AMS-A-22771 | AMS 4149 and AMS-A-22771 | |
| Basis | S | S | S | S | S | |
| Ftu, MPa | L | 503.3 | 503.3 | 489.5 | 468.8 | 448.2 |
| LT | 489.5 | 489.5 | 482.6 | 461.9 | 441.3 | |
| ST | … | 475.7 | 468.8 | 455.1 | 434.4 | |
| Fty, MPa | L | 434.4 | 434.4 | 420.6 | 393 | 372.3 |
| LT | 413.7 | 413.7 | 399.9 | 386.1 | 358.5 | |
| ST | … | 413.7 | 393 | 379.2 | 358.5 | |
| Fcy, MPa | L | 434.4 | 434.4 | 420.6 | 406.8 | 379.2 |
| LT | 427.5 | 434.4 | 420.6 | 413.7 | 386.1 | |
| ST | 420.6 | 427.5 | 413.7 | 406.8 | 379.2 | |
| Fbru (e/D = 1.5), MPa | L | 730.8 | 730.8 | 717.1 | 689.5 | 655 |
| LT | 730.8 | 730.8 | 717.1 | 689.5 | 655 | |
| ST | 730.8 | 730.8 | 717.1 | 689.5 | 655 | |
| Fbru (e/D = 2.0), MPa | L | 951.5 | 951.5 | 937.7 | 903.2 | 861.8 |
| LT | 951.5 | 951.5 | 937.7 | 903.2 | 861.8 | |
| ST | 951.5 | 951.5 | 937.7 | 903.2 | 861.8 | |
| Fbry (e/D = 1.5), MPa | L | 503.3 | 537.8 | 551.6 | 558.5 | 524 |
| LT | 503.3 | 537.8 | 551.6 | 558.5 | 524 | |
| ST | 503.3 | 537.8 | 551.6 | 558.5 | 524 | |
| Fbry (e/D = 2.0), MPa | L | 613.6 | 648.1 | 655 | 655 | 620.5 |
| LT | 613.6 | 648.1 | 655 | 655 | 620.5 | |
| ST | 613.6 | 648.1 | 655 | 655 | 620.5 | |
| e, % | L | 9 | 9 | 9 | 8 | 8 |
| LT | 5 | 5 | 5 | 5 | 5 | |
| ST | … | 4 | 4 | 4 | 4 | |
| E, GPa | 70.33 | 70.33 | 70.33 | 70.33 | 70.33 | |
| Ec, GPa | 73.08 | 73.08 | 73.08 | 73.08 | 73.08 | |
| G, GPa | 26.89 | 26.89 | 26.89 | 26.89 | 26.89 | |
| ν | 0.33 | 0.33 | 0.33 | 0.33 | 0.33 | |
| ρ, kg/m³ | 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-T7452 Hand forging (Table 3.7.8.0(c))
- 7175-T74a,b Die forging (Table 3.7.8.0(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.