Commercially Pure-Annealed Extruded bars and shapes: MIL-HDBK-5J Design Allowables
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| Material class | Titanium |
| Alloy / temper / form | Commercially Pure / Annealed / Extruded bars and shapes |
| Specifications | Comp. CP-1; Comp. CP-4 |
| Handbook | MIL-HDBK-5J, 31 January 2003, section 5.2.1.0, Table 5.2.1.0(c) (pdf page 8 of the chapter file) |
| Dimension bands | 2 |
| Density | 0.163 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 | 0.188–3.000 in | 0.188–3.000 in | |
|---|---|---|---|
| Specification | Comp. CP-4 | Comp. CP-1 | |
| Basis | S | S | |
| Ftu, ksi | L | 40 | 80 |
| Fty, ksi | L | 30 | 70 |
| E, Msi | 15.5 | 15.5 | |
| Ec, Msi | 16 | 16 | |
| G, Msi | 6.5 | 6.5 | |
| ρ, lb/in3 | 0.163 | 0.163 | |
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
| °F | F_tu | F_ty | F_cy | F_su | F_bru | F_bry | F_bru (e/D = 2.0) | F_bry (e/D = 2.0) |
|---|---|---|---|---|---|---|---|---|
| 100 | 96.3 | 96.4 | 93.3 | 96 | 95.2 | 97.8 | 95.2 | |
| 200 | 79.9 | 75.9 | 71 | 84 | 85.3 | 80.3 | 85.3 | 80.3 |
| 300 | 66.6 | 58.4 | 54.3 | 72.8 | 74 | 67 | 74 | 67 |
| 400 | 56 | 45.1 | 46 | 63.1 | 64.2 | 55.9 | 64.2 | 55.9 |
| 500 | 49.7 | 36.4 | 45.3 | 55.3 | 56.3 | 47.8 | 56.3 | 47.8 |
| 600 | 44.3 | 31.3 | 44.9 | 49.7 | 50.6 | 42.5 | 50.6 | 42.5 |
| 700 | 39.6 | 28.2 | 43.9 | 46 | 47.3 | 39.1 | 45.1 | 39.1 |
| 800 | 35.8 | 25 | 40.5 | 40.5 | 42 | 37.8 | 39.3 | 34.8 |
| 1000 | 37.2 | 27.2 |
Factors in percent of the room-temperature allowable.
Other Commercially Pure Tables
- Commercially Pure-Annealed (50 ksi) Extruded bars and shapes (Table 5.2.1.0(c))
- Commercially Pure-Annealed (65 ksi) Extruded bars and shapes (Table 5.2.1.0(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.