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AZ31B-F Extruded bar, rod, and / solid shapes: MIL-HDBK-5J Design Allowables

Material classMagnesium Alloy
Alloy / temper / formAZ31B / F / Extruded bar, rod, and / solid shapes
SpecificationsASTM B 107
HandbookMIL-HDBK-5J, 31 January 2003, section 4.2.1.0, Table 4.2.1.0(d) (pdf page 9 of the chapter file)
Dimension bands4
Density1769 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 band0.000–0.249 in (0–6.325 mm)0.250–1.499 in (6.35–38.07 mm)1.500–2.499 in (38.1–63.47 mm)2.500–4.999 in (63.5–127 mm)
SpecificationASTM B 107ASTM B 107ASTM B 107ASTM B 107
BasisSSSS
Ftu, MPaL241.3241.3234.4220.6
Fty, MPaL144.8151.7151.7137.9
Fcy, MPaL…82.7482.7468.95
Fsu, MPaL117.2117.2117.2…
Fbru (e/D = 1.5), MPaL248.2248.2248.2…
Fbru (e/D = 2.0), MPaL310.3310.3310.3…
Fbry (e/D = 1.5), MPaL158.6158.6158.6…
Fbry (e/D = 2.0), MPaL158.6158.6158.6…
e, %L7777
E, GPa44.8244.8244.8244.82
Ec, GPa44.8244.8244.8244.82
G, GPa16.5516.5516.5516.55
ν0.350.350.350.35
ρ, kg/m³1769176917691769

Effect of Temperature

The handbook maps no temperature-effect figure to this table.

Other AZ31B Tables

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from the chapter tables; check the printed table before use in a certified analysis, and note that MIL-HDBK-5J was superseded by MMPDS, whose later editions may differ.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.