AZ31B-H24 Plate: 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 | Magnesium Alloy |
| Alloy / temper / form | AZ31B / H24 / Plate |
| Specifications | AMS 4377 |
| Handbook | MIL-HDBK-5J, 31 January 2003, section 4.2.1.0, Table 4.2.1.0(b) (pdf page 7 of the chapter file) |
| Dimension bands | 5 |
| Density | 1769 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 | 0.250–0.374 in (6.35–9.5 mm) | 0.375–0.500 in (9.525–12.7 mm) | 0.501–1.000 in (12.73–25.4 mm) | 1.001–2.000 in (25.43–50.8 mm) | 2.001–3.000 in (50.83–76.2 mm) | |
|---|---|---|---|---|---|---|
| Specification | AMS 4377 | AMS 4377 | AMS 4377 | AMS 4377 | AMS 4377 | |
| Basis | S | S | S | S | S | |
| Ftu, MPa | L | 262 | 255.1 | 248.2 | 234.4 | 234.4 |
| LT | 268.9 | 262 | 255.1 | 241.3 | … | |
| Fty, MPa | L | 179.3 | 165.5 | 151.7 | 137.9 | 124.1 |
| LT | 199.9 | 186.2 | 172.4 | 158.6 | … | |
| Fcy, MPa | L | 137.9 | 110.3 | 89.63 | 68.95 | 62.05 |
| LT | … | … | … | … | … | |
| Fsu, MPa | L | 124.1 | 124.1 | … | … | … |
| LT | 124.1 | 124.1 | … | … | … | |
| Fbru (e/D = 1.5), MPa | L | 386.1 | 372.3 | … | … | … |
| LT | 386.1 | 372.3 | … | … | … | |
| Fbru (e/D = 2.0), MPa | L | 448.2 | 434.4 | … | … | … |
| LT | 448.2 | 434.4 | … | … | … | |
| Fbry (e/D = 1.5), MPa | L | 262 | 234.4 | … | … | … |
| LT | 262 | 234.4 | … | … | … | |
| Fbry (e/D = 2.0), MPa | L | 262 | 234.4 | … | … | … |
| LT | 262 | 234.4 | … | … | … | |
| e, % | L | 8 | 8 | 8 | 8 | 8 |
| LT | … | … | … | … | … | |
| E, GPa | 44.82 | 44.82 | 44.82 | 44.82 | 44.82 | |
| Ec, GPa | 44.82 | 44.82 | 44.82 | 44.82 | 44.82 | |
| G, GPa | 16.55 | 16.55 | 16.55 | 16.55 | 16.55 | |
| ν | 0.35 | 0.35 | 0.35 | 0.35 | 0.35 | |
| ρ, kg/m³ | 1769 | 1769 | 1769 | 1769 | 1769 | |
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 | 96.8 | 96.8 | 97.8 | 97.8 | 97.3 | 97.3 |
| 93 | 81.6 | 74.8 | 89.7 | 87.1 | 96.4 | 92.3 |
| 149 | 54.5 | 45.2 | 75.2 | 72.3 | 82.7 | 72.4 |
| 204 | 30.7 | 22.7 | 46.2 | 46.2 | 39.9 | 31.8 |
| 26 | 18.7 | 13.6 | 22.9 | 30.8 | 26.6 | 21.2 |
Factors in percent of the room-temperature allowable.
Other AZ31B Tables
- AZ31B-F Extruded / hollow shapes (Table 4.2.1.0(d))
- AZ31B-F Extruded bar, rod, and / solid shapes (Table 4.2.1.0(d))
- AZ31B-F Extruded tube (Table 4.2.1.0(d))
- AZ31B-F Forging (Table 4.2.1.0(d))
- AZ31B-H24 Sheet (Table 4.2.1.0(b))
- AZ31B-H26 Plate (Table 4.2.1.0(c))
- AZ31B-O Plate (Table 4.2.1.0(b))
- AZ31B-O Sheet (Table 4.2.1.0(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.