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2024-T81, T8510, and T8511 Extruded bar, rod, and shapes: MIL-HDBK-5J Design Allowables

Material classAluminum
Alloy / temper / form2024 / T81, T8510, and T8511 / Extruded bar, rod, and shapes
SpecificationsAMS-QQ-A-200/3
HandbookMIL-HDBK-5J, 31 January 2003, section 3.2.3.0, Table 3.2.3.0(j) (pdf page 85 of the chapter file)
Dimension bands3
Density2768 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 band0.050–0.249 in (1.27–6.325 mm), area 0–20 in2 (0–12900 mm²)0.250–1.499 in (6.35–38.07 mm), area 0–20 in2 (0–12900 mm²)1.500–4.500 in (38.1–114.3 mm), area 0–32 in2 (0–20650 mm²)
SpecificationAMS-QQ-A-200/3AMS-QQ-A-200/3AMS-QQ-A-200/3
BasisSSS
Ftu, MPaL441.3455.1455.1
LT441.3441.3420.6
Fty, MPaL386.1399.9399.9
LT379.2393393
Fcy, MPaL393406.8406.8
LT393406.8406.8
Fsu, MPaL241.3248.2248.2
LT241.3248.2248.2
Fbru (e/D = 1.5), MPaL648.1661.9634.3
LT648.1661.9634.3
Fbru (e/D = 2.0), MPaL848.1848.1806.7
LT848.1848.1806.7
Fbry (e/D = 1.5), MPaL544.7565.4565.4
LT544.7565.4565.4
Fbry (e/D = 2.0), MPaL641.2661.9661.9
LT641.2661.9661.9
e, %L455
LT………
E, GPa74.4674.4674.46
Ec, GPa75.8475.8475.84
G, GPa28.2728.2728.27
ν0.330.330.33
ρ, kg/m³276827682768

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

Elongation and exposure effects

°CF_tuF_tyF_cyF_suF_bruF_bry
3897.698.299.399.199.799.7
9388.990.594.49497.397.4
14981.983.286.187.992.192.9
20471.370.174.879.3
2651.249.1
31628.524.8
3719.1

Factors in percent of the room-temperature allowable.

Other 2024 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.