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7040-T7451 Plate: MIL-HDBK-5J Design Allowables

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Material class	Aluminum
Alloy / temper / form	7040 / T7451 / Plate
Specifications	AMS 4211
Handbook	MIL-HDBK-5J, 31 January 2003, section 3.7.2.0, Table 3.7.2.0(b) (pdf page 303 of the chapter file)
Dimension bands	6
Density	0.102 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		3.001–4.000 in		4.001–5.000 in		5.001–6.000 in		6.001–7.000 in		7.001–8.000 in		8.001–8.500 in
Specification		AMS 4211		AMS 4211		AMS 4211		AMS 4211		AMS 4211		AMS 4211
Basis		A	B	A	B	A	B	A	B	A	B	A	B
F_tu, ksi	L	72	72	71	72	70	71	69	70	68	70	68	70
	LT	72	74	71	73	70	72	69	70	68	69	68	69
	ST	69	70	68	70	68	69	66	67	66	67	66	67
F_ty, ksi	L	62	65	62	64	62	64	62	62	61	62	61	63
	LT	62	65	62	65	61	63	60	62	60	61	59	61
	ST	59	61	58	61	58	61	57	58	57	58	56	58
F_cy, ksi	L	60	63	60	62	59	61	58	60	59	60	59	61
	LT	64	67	64	67	63	66	62	64	62	64	61	63
	ST	63	66	63	66	62	65	61	63	61	63	60	63
F_su, ksi	L	45	47	44	46	44	45	43	44	43	44	43	44
	LT	45	47	44	46	44	45	43	44	43	44	43	44
	ST	45	47	44	46	44	45	43	44	43	44	43	44
F_bru (e/D = 1.5), ksi	L	114	117	112	115	110	114	108	110	105	108	105	106
	LT	114	117	112	115	110	114	108	110	105	108	105	106
	ST	114	117	112	115	110	114	108	110	105	108	105	106
F_bru (e/D = 2.0), ksi	L	145	150	143	147	140	145	137	140	134	136	133	134
	LT	145	150	143	147	140	145	137	140	134	136	133	134
	ST	145	150	143	147	140	145	137	140	134	136	133	134
F_bry (e/D = 1.5), ksi	L	93	97	93	97	92	96	90	93	90	92	88	91
	LT	93	97	93	97	92	96	90	93	90	92	88	91
	ST	93	97	93	97	92	96	90	93	90	92	88	91
F_bry (e/D = 2.0), ksi	L	114	119	114	119	112	117	110	113	110	113	108	112
	LT	114	119	114	119	112	117	110	113	110	113	108	112
	ST	114	119	114	119	112	117	110	113	110	113	108	112
e, %	L	9	9	9	9	8	8	7	…	6	…	6	…
	LT	6	6	5	5	4	4	4	…	4	…	4	…
	ST	3	3	3	3	3	3	3	…	3	…	3	…
E, Msi		10.4	10.4	10.4	10.4	10.4	10.4	10.4	10.4	10.4	10.4	10.4	10.4
E_c, Msi		10.6	10.6	10.6	10.6	10.6	10.6	10.6	10.6	10.6	10.6	10.6	10.6
G, Msi		3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9
ν		0.33	0.33	0.33	0.33	0.33	0.33	0.33	0.33	0.33	0.33	0.33	0.33
ρ, lb/in3		0.102	0.102	0.102	0.102	0.102	0.102	0.102	0.102	0.102	0.102	0.102	0.102

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

°F	F_tu	F_ty
0	104.2	103.2
100	97.5	98.2
200	87.9	91.3
300	75.8	82.3

Factors in percent of the room-temperature allowable.

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.