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2024-T851 Plate: MIL-HDBK-5J Design Allowables

Material classAluminum
Alloy / temper / form2024 / T851 / Plate
SpecificationsAMS-QQ-A-250/4
HandbookMIL-HDBK-5J, 31 January 2003, section 3.2.3.0, Table 3.2.3.0(b) (pdf page 73 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 band0.250–0.499 in (6.35–12.67 mm)0.500–1.000 in (12.7–25.4 mm)1.001–1.499 in (25.43–38.07 mm)
SpecificationAMS-QQ-A-250/4AMS-QQ-A-250/4AMS-QQ-A-250/4
BasisABSS
Ftu, MPaL461.9468.8455.1455.1
LT461.9468.8455.1455.1
Fty, MPaL399.9413.7399.9393
LT399.9413.7399.9393
Fcy, MPaL399.9413.7399.9386.1
LT406.8420.6399.9393
Fsu, MPaL262268.9255.1255.1
LT262268.9255.1255.1
Fbru (e/D = 1.5), MPaL703.3710.2689.5689.5
LT703.3710.2689.5689.5
Fbru (e/D = 2.0), MPaL903.2917889.4889.4
LT903.2917889.4889.4
Fbry (e/D = 1.5), MPaL592.9613.6592.9586.1
LT592.9613.6592.9586.1
Fbry (e/D = 2.0), MPaL696.4723.9696.4682.6
LT696.4723.9696.4682.6
e, %L…………
LT5555
E, GPa73.7773.7773.7773.77
Ec, GPa75.1575.1575.1575.15
G, GPa27.5827.5827.5827.58
ν0.330.330.330.33
ρ, kg/m³2768276827682768

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.