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2024-T3 Clad flat sheet and plate: MIL-HDBK-5J Design Allowables

Material classAluminum
Alloy / temper / form2024 / T3 / Clad flat sheet and plate
SpecificationsAMS-QQ-A-250/5
HandbookMIL-HDBK-5J, 31 January 2003, section 3.2.3.0, Table 3.2.3.0(e) (pdf page 75 of the chapter file)
Dimension bands4
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 band0.008–0.009 in (0.2032–0.2286 mm)0.010–0.062 in (0.254–1.575 mm)0.063–0.128 in (1.6–3.251 mm)0.129–0.249 in (3.277–6.325 mm)
SpecificationAMS-QQ-A-250/5AMS-QQ-A-250/5AMS-QQ-A-250/5AMS-QQ-A-250/5
BasisABABABAB
Ftu, MPaL406.8413.7413.7420.6427.5434.4434.4441.3
LT399.9406.8406.8413.7420.6427.5427.5434.4
Fty, MPaL303.4310.3303.4310.3310.3324.1310.3324.1
LT268.9275.8268.9275.8275.8289.6275.8289.6
Fcy, MPaL248.2255.1248.2255.1255.1268.9255.1268.9
LT289.6296.5289.6296.5296.5310.3296.5310.3
Fsu, MPaL255.1255.1255.1262262268.9268.9275.8
LT255.1255.1255.1262262268.9268.9275.8
Fbru (e/D = 1.5), MPaL661.9668.8668.8682.6696.4703.3703.3717.1
LT661.9668.8668.8682.6696.4703.3703.3717.1
Fbru (e/D = 2.0), MPaL820.5834.3834.3848.1861.8875.6875.6889.4
LT820.5834.3834.3848.1861.8875.6875.6889.4
Fbry (e/D = 1.5), MPaL468.8482.6468.8482.6482.6503.3482.6503.3
LT468.8482.6468.8482.6482.6503.3482.6503.3
Fbry (e/D = 2.0), MPaL565.4579.2565.4579.2579.2606.7579.2606.7
LT565.4579.2565.4579.2579.2606.7579.2606.7
e, %L……………………
LT1010……15151515
E, GPa72.3972.3972.3972.3972.3972.3972.3972.39
Ec, GPa73.7773.7773.7773.7773.7773.7773.7773.77
ν0.330.330.330.330.330.330.330.33
nt (Ramberg-Osgood)……161616161616
nc (Ramberg-Osgood)……202020202020
ρ, kg/m³27682768276827682768276827682768

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
-184111.6118.5
-129105.3108.3
-73103103.6
-18101.6102
3898.998.999.398.999.399.6
9392.493.996.694.896.598
14983.987.492.489.69195.2
20474.577.785.781.979.488.8
2643.851.667.154.453.963.7
31622.526.937.925.829.934.9
371121415.816.7
4278

Factors in percent of the room-temperature allowable.

Stress-Strain Curves (Ramberg-Osgood)

ε = σ/E + 0.002 (σ/F_y)^n with the first band's A-basis yield strength and the exponent on file for it (the tension curve stops at F_tu).

Ramberg-Osgood design stress-strain curves at room temperature

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.