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7050-T7451 Plate: MIL-HDBK-5J Design Allowables

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Material class	Aluminum
Alloy / temper / form	7050 / T7451 / Plate
Specifications	AMS 4050
Handbook	MIL-HDBK-5J, 31 January 2003, section 3.7.4.0, Table 3.7.4.0(b) (pdf page 324 of the chapter file)
Dimension bands	8
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		0.250–1.500 in		1.501–2.000 in		2.001–3.000 in		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
Specification		AMS 4050		AMS 4050		AMS 4050		AMS 4050		AMS 4050		AMS 4050		AMS 4050		AMS 4050
Basis		A	B	A	B	A	B	A	B	A	B	A	B	A	B	A	B
F_tu, ksi	L	74	76	74	76	73	75	72	74	71	73	70	72	69	72	68	71
	LT	74	76	74	76	73	75	72	75	71	74	70	73	69	72	68	71
	ST	…	…	…	…	68	72	68	71	67	70	66	69	66	68	65	67
F_ty, ksi	L	64	67	64	66	63	66	62	65	61	65	60	63	59	62	58	63
	LT	64	66	64	66	63	66	62	65	61	64	60	62	59	62	58	61
	ST	…	…	…	…	59	61	57	60	57	60	57	59	56	58	55	58
F_cy, ksi	L	63	64	62	64	61	64	60	63	58	61	57	59	56	59	55	57
	LT	66	68	67	69	66	69	65	68	64	67	63	66	60	63	59	62
	ST	…	…	…	…	63	66	63	66	63	66	62	64	60	63	59	62
F_su, ksi	L	42	43	43	44	43	44	43	45	43	45	43	45	44	46	44	46
	LT	42	43	43	44	43	44	43	45	43	45	43	45	44	46	44	46
	ST	…	…	…	…	43	44	43	45	43	45	43	45	44	46	44	46
F_bru (e/D = 1.5), ksi	L	107	110	109	112	108	111	107	111	107	111	105	110	107	112	103	108
	LT	107	110	109	112	108	111	107	111	107	111	105	110	107	112	103	108
	ST	…	…	…	…	108	111	107	111	107	111	105	110	107	112	103	108
F_bru (e/D = 2.0), ksi	L	140	144	142	146	141	144	140	144	138	144	137	142	136	143	132	138
	LT	140	144	142	146	141	144	140	144	138	144	137	142	136	143	132	138
	ST	…	…	…	…	141	144	140	144	138	144	137	142	136	143	132	138
F_bry (e/D = 1.5), ksi	L	86	89	89	92	89	93	90	94	90	95	91	94	84	89	83	87
	LT	86	89	89	92	89	93	90	94	90	95	91	94	84	89	83	87
	ST	…	…	…	…	89	93	90	94	90	95	91	94	84	89	83	87
F_bry (e/D = 2.0), ksi	L	101	104	104	107	104	109	104	109	105	110	105	108	99	105	98	102
	LT	101	104	104	107	104	109	104	109	105	110	105	108	99	105	98	102
	ST	…	…	…	…	104	109	104	109	105	110	105	108	99	105	98	102
e, %	L	10	10	10	10	9	9	9	9	9	9	7	8	7	7	6	…
	LT	9	9	9	9	8	8	6	6	5	5	4	4	4	4	4	…
	ST	…	…	…	…	3	3	3	3	3	3	3	3	3	3	3	…
E, Msi		10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3
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	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	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	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	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
100	97.5	99.7
200	85.2	92.7
300	72.4	80.3

Factors in percent of the room-temperature allowable.

Other 7050 Tables

7050-T73511 Extrusion (Table 3.7.4.0(e))
7050-T74 Die forging (Table 3.7.4.0(c))
7050-T74511 Extrusion (Table 3.7.4.0(e))
7050-T7452 Die forgings (Table 3.7.4.0(c))
7050-T7452 Hand Forging (Table 3.7.4.0(d))
7050-T7651 Plate (Table 3.7.4.0(b))
7050-T76511 Extrusion (Table 3.7.4.0(e))

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.