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2024-T861 Clad flat sheet and plate: MIL-HDBK-5J Design Allowables

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Material class	Aluminum
Alloy / temper / form	2024 / T861 / Clad flat sheet and plate
Specifications	AMS-QQ-A-250/5
Handbook	MIL-HDBK-5J, 31 January 2003, section 3.2.3.0, Table 3.2.3.0(e) (pdf page 78 of the chapter file)
Dimension bands	4
Density	0.1 lb/in3

Design Mechanical and Physical Properties (room temperature)

As printed in the handbook table. 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		0.000–0.500 in	0.020–0.062 in	0.063–0.249 in	0.250–0.499 in
Specification		AMS-QQ-A-250/5	AMS-QQ-A-250/5	AMS-QQ-A-250/5	AMS-QQ-A-250/5
Basis		S	S	S	S
F_tu, ksi	L	67	65	70	68
F_tu, ksi	LT	67	64	69	68
F_ty, ksi	L	61	59	65	62
F_ty, ksi	LT	61	58	64	62
F_cy, ksi	L	61	59	65	62
F_cy, ksi	LT	64	61	67	65
F_su, ksi	L	38	36	39	39
F_su, ksi	LT	38	36	39	39
F_bru (e/D = 1.5), ksi	L	104	99	107	105
F_bru (e/D = 1.5), ksi	LT	104	99	107	105
F_bru (e/D = 2.0), ksi	L	134	128	138	136
F_bru (e/D = 2.0), ksi	LT	134	128	138	136
F_bry (e/D = 1.5), ksi	L	88	84	93	90
F_bry (e/D = 1.5), ksi	LT	88	84	93	90
F_bry (e/D = 2.0), ksi	L	104	99	109	105
F_bry (e/D = 2.0), ksi	LT	104	99	109	105
e, %	L	…	…	…	…
e, %	LT	4	3	4	4
E, Msi		10.5	10.5	10.5	10.5
E_c, Msi		10.9	10.7	10.7	10.9
ν		0.33	0.33	0.33	0.33
ρ, lb/in3		0.1	0.1	0.1	0.1

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

°F	F_tu	F_ty	F_cy	F_su	F_bru	F_bry
100	97.9	97.5	97.4	98.5	98.4	99.6
200	89.3	90.1	88.7	90	92.5	97.2
300	81.6	82.8	82.4	80.4	84.3	92.1
400	71.1	69.7	72.5	68.3	71.9	79.1
500	50.9	49.2	47.5	50.6	54.5	56.6
600	28.8	25.3	21.6	24.8	29.9	32.9

Factors in percent of the room-temperature allowable.

Other 2024 Tables

2024-T3 Clad flat sheet and plate (Table 3.2.3.0(e))
2024-T3 Drawn tubing (Table 3.2.3.0(g))
2024-T3 Sheet (Table 3.2.3.0(b))
2024-T3, T3510, and T3511 Extruded bar, rod, and shapes (Table 3.2.3.0(j))
2024-T351 Bar and rod; rolled, drawn, or cold-finished (Table 3.2.3.0(i))
2024-T351 Clad flat sheet and plate (Table 3.2.3.0(e))
2024-T351 Plate (Table 3.2.3.0(b))
2024-T361 Bar and rod; rolled, drawn, or cold-finished (Table 3.2.3.0(i))
2024-T361 Clad flat sheet and plate (Table 3.2.3.0(e))
2024-T361 Plate (Table 3.2.3.0(b))
2024-T361 Sheet (Table 3.2.3.0(b))
2024-T4 Bar and rod; rolled, drawn, or cold-finished (Table 3.2.3.0(i))
2024-T4 Clad coiled sheet (Table 3.2.3.0(e))
2024-T4 Coiled Sheet (Table 3.2.3.0(b))
2024-T42 Bar and rod; rolled, drawn, or cold-finished (Table 3.2.3.0(i))
2024-T42 Clad flat sheet and plate (Table 3.2.3.0(e))
2024-T42 Drawn tubing (Table 3.2.3.0(g))
2024-T42 Extruded bar, rod, and shapes (Table 3.2.3.0(j))
2024-T42 Flat Sheet and Plate (Table 3.2.3.0(b))
2024-T6 Bar and rod; rolled, drawn, or cold finished (Table 3.2.3.0(i))
2024-T62 Bar and rod; rolled, drawn, or cold finished (Table 3.2.3.0(i))
2024-T62 Clad flat sheet and plate (Table 3.2.3.0(e))
2024-T62 Flat Sheet and Plate (Table 3.2.3.0(b))
2024-T72 Clad flat sheet and plate (Table 3.2.3.0(e))
2024-T72 Flat Sheet and Plate (Table 3.2.3.0(b))
2024-T81 Clad flat sheet and plate (Table 3.2.3.0(e))
2024-T81 Drawn tubing (Table 3.2.3.0(g))
2024-T81 Sheet (Table 3.2.3.0(b))
2024-T81, T8510, and T8511 Extruded bar, rod, and shapes (Table 3.2.3.0(j))
2024-T851 Bar and rod; rolled, drawn, or cold finished (Table 3.2.3.0(i))
2024-T851 Clad flat sheet and plate (Table 3.2.3.0(e))
2024-T851 Plate (Table 3.2.3.0(b))
2024-T861 Plate (Table 3.2.3.0(b))
2024-T861 Sheet (Table 3.2.3.0(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.