QE22A-T6 Sand casting: MIL-HDBK-5J Design Allowables
show SI units (MPa, GPa, kg/m³) open the MIL-HDBK-5J tool compare against temperature find alternatives
| Material class | Magnesium Alloy |
| Alloy / temper / form | QE22A / T6 / Sand casting |
| Specifications | AMS 4418 |
| Handbook | MIL-HDBK-5J, 31 January 2003, section 4.3.5.0, Table 4.3.5.0(b) (pdf page 45 of the chapter file) |
| Dimension bands | 1 |
| Density | 0.0653 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 | all | |
|---|---|---|
| Specification | AMS 4418 | |
| Basis | S | |
| Ftu, ksi | 32 | |
| Fty, ksi | 23 | |
| Fcy, ksi | 23 | |
| e, % | 2 | |
| E, Msi | 6.5 | |
| Ec, Msi | 6.5 | |
| G, Msi | 2.4 | |
| ν | 0.35 | |
| ρ, lb/in3 | 0.0653 | |
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
| °F | F_tu | F_ty |
|---|---|---|
| 100 | 97.9 | 97.9 |
| 200 | 95.8 | 86.8 |
| 300 | 87 | 75.4 |
| 400 | 72.3 | 61.7 |
| 500 | 49.4 | 43.7 |
| 600 | 25.6 | 27.4 |
Factors in percent of the room-temperature allowable.
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from the chapter tables; check the printed table before use in a certified analysis, and note that MIL-HDBK-5J was superseded by MMPDS, whose later editions may differ.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.