5Cr-Mo-V Aircraft-Quenched and tempered (280 ksi) Bars and forgings: 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 | Steel |
| Alloy / temper / form | 5Cr-Mo-V Aircraft / Quenched and tempered (280 ksi) / Bars and forgings |
| Specifications | AMS 6487 and AMS 6488 |
| Handbook | MIL-HDBK-5J, 31 January 2003, section 2.4.1.0, Table 2.4.1.0(c) (pdf page 68 of the chapter file) |
| Dimension bands | 1 |
| Density | 7778 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 | all | |
|---|---|---|
| Specification | AMS 6487 and AMS 6488 | |
| Basis | S | |
| Ftu, MPa | LT | 1931 |
| Fty, MPa | LT | 1655 |
| Fcy, MPa | LT | 1793 |
| Fsu, MPa | LT | 1158 |
| Fbru (e/D = 2.0), MPa | LT | 3206 |
| Fbry (e/D = 2.0), MPa | LT | 2517 |
| E, GPa | 206.8 | |
| Ec, GPa | 206.8 | |
| G, GPa | 75.84 | |
| ν | 0.36 | |
| ρ, kg/m³ | 7778 | |
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
| °C | F_tu | F_ty | F_cy | F_su | F_bru | F_bry |
|---|---|---|---|---|---|---|
| 38 | 99.5 | 99.4 | 99.4 | 99.6 | 99.7 | 99.8 |
| 93 | 96.7 | 96.9 | 97 | 97.8 | 97.6 | 96.8 |
| 149 | 94 | 94.2 | 94.5 | 96.2 | 95.6 | 93.9 |
| 204 | 91 | 91.7 | 92 | 94.4 | 93.3 | 91 |
| 26 | 88.1 | 89 | 89.7 | 92.7 | 90.7 | 88.2 |
| 316 | 85.3 | 86.6 | 87.4 | 91.1 | 87.9 | 85.3 |
| 371 | 82.7 | 83.9 | 84.6 | 89.1 | 84.8 | 81.6 |
| 427 | 79.6 | 79.7 | 80.6 | 86.2 | 80.6 | 76.9 |
| 538 | 65.1 | 64.5 | 64.3 | 74.7 | 64 | 62.7 |
Factors in percent of the room-temperature allowable.
Other 5Cr-Mo-V Aircraft Tables
- 5Cr-Mo-V Aircraft-Quenched and tempered (240 ksi) Bars and forgings (Table 2.4.1.0(c))
- 5Cr-Mo-V Aircraft-Quenched and tempered (240 ksi) Sheet, strip, and plate (Table 2.4.1.0(d))
- 5Cr-Mo-V Aircraft-Quenched and tempered (260 ksi) Bars and forgings (Table 2.4.1.0(c))
- 5Cr-Mo-V Aircraft-Quenched and tempered (260 ksi) Sheet, strip, and plate (Table 2.4.1.0(d))
- 5Cr-Mo-V Aircraft-Quenched and tempered (280 ksi) Sheet, strip, and plate (Table 2.4.1.0(d))
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.