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2024-T42 Clad flat sheet and plate: MIL-HDBK-5J Design Allowables

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Material class	Aluminum
Alloy / temper / form	2024 / T42 / 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 77 of the chapter file)
Dimension bands	7
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		0.008–0.009 in		0.010–0.062 in		0.063–0.249 in	0.250–0.499 in	0.500–1.000 in	1.001–2.000 in	2.001–3.000 in
Specification		AMS-QQ-A-250/5		AMS-QQ-A-250/5		AMS-QQ-A-250/5	AMS-QQ-A-250/5	AMS-QQ-A-250/5	AMS-QQ-A-250/5	AMS-QQ-A-250/5
Basis		A	B	A	B	A	B	S	S	S
F_tu, ksi	L	55	57	57	59	60	62	60	59	58
F_ty, ksi	L	34	35	34	35	36	38	36	36	36
F_cy, ksi	L	38	39	38	39	40	42	39	38	35
F_su, ksi	L	33	34	34	35	36	37	36	35	35
F_bru (e/D = 1.5), ksi	L	88	91	91	94	96	99	95	90	83
F_bru (e/D = 2.0), ksi	L	109	113	113	117	119	123	119	117	115
F_bry (e/D = 1.5), ksi	L	60	61	60	61	63	67	63	63	63
F_bry (e/D = 2.0), ksi	L	72	74	72	74	76	80	76	76	76
E, Msi		10.5	10.5	10.5	10.5	10.5	10.5	10.7	10.7	10.7
E_c, Msi		10.7	10.7	10.7	10.7	10.7	10.7	10.9	10.9	10.9
ν		0.33	0.33	0.33	0.33	0.33	0.33	0.33	0.33	0.33
ρ, lb/in3		0.1	0.1	0.1	0.1	0.1	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
100	99.4	100
200	95.8	98
300	88.9	95
400	71.4	84
500	37.9	47.6
600	20.3	22.8
700	11.8	12.9

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 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 Clad flat sheet and plate (Table 3.2.3.0(e))
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.