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7049/7149-T73 Die forging: MIL-HDBK-5J Design Allowables

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Material class	Aluminum
Alloy / temper / form	7049/7149 / T73 / Die forging
Specifications	AMS-QQ-A-367, AMS 4111, AMS 4320, and AMS-A-22771
Handbook	MIL-HDBK-5J, 31 January 2003, section 3.7.3.0, Table 3.7.3.0(c) (pdf page 307 of the chapter file)
Dimension bands	5
Density	0.103 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		0–1 in		1.001–2.000 in		2.001–3.000 in		3.001–4.000 in		4.001–5.000 in
Specification		AMS-QQ-A-367, AMS 4111, AMS 4320, and AMS-A-22771		AMS-QQ-A-367, AMS 4111, AMS 4320, and AMS-A-22771		AMS-QQ-A-367, AMS 4111, AMS 4320, and AMS-A-22771		AMS-QQ-A-367, AMS 4111, AMS 4320, and AMS-A-22771		AMS-QQ-A-367, AMS 4111, AMS 4320, and AMS-A-22771
Basis		A	B	A	B	A	B	A	B	A	B
F_tu, ksi	L	71	74	70	73	69	72	68	71	67	70
	LT	71	…	70	…	70	…	70	…	68	…
	ST	…	…	…	…	…	…	…	…	…	…
F_ty, ksi	L	60	64	59	63	58	61	57	60	55	59
	LT	61	…	60	…	60	…	60	…	58	…
	ST	…	…	…	…	…	…	…	…	…	…
F_cy, ksi	L	62	66	61	65	60	63	59	62	57	61
	LT	…	…	…	…	…	…	…	…	…	…
	ST	56	60	55	59	54	57	53	56	51	55
F_su, ksi	L	40	41	39	41	39	40	38	40	37	39
	LT	40	…	39	…	39	…	38	…	37	…
	ST	40	41	39	41	39	40	38	40	37	39
F_bru (e/D = 1.5), ksi	L	100	105	99	103	98	102	96	100	95	99
	LT	100	…	99	…	98	…	96	…	95	…
	ST	100	105	99	103	98	102	96	100	95	99
F_bru (e/D = 2.0), ksi	L	132	138	130	136	128	134	126	132	125	130
	LT	132	…	130	…	128	…	126	…	125	…
	ST	132	138	130	136	128	134	126	132	125	130
F_bry (e/D = 1.5), ksi	L	82	82	75	80	74	78	73	76	70	75
	LT	82	…	75	…	74	…	73	…	70	…
	ST	82	82	75	80	74	78	73	76	70	75
F_bry (e/D = 2.0), ksi	L	99	99	91	97	90	94	88	93	85	91
	LT	99	…	91	…	90	…	88	…	85	…
	ST	99	99	91	97	90	94	88	93	85	91
e, %	L	7	7	7	7	7	7	7	7	7	7
	LT	3	…	3	…	3	…	2	…	2	…
	ST	…	…	…	…	…	…	…	…	…	…
E, Msi		10.2	10.2	10.2	10.2	10.2	10.2	10.2	10.2	10.2	10.2
E_c, Msi		10.7	10.7	10.7	10.7	10.7	10.7	10.7	10.7	10.7	10.7
G, Msi		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
ρ, lb/in3		0.103	0.103	0.103	0.103	0.103	0.103	0.103	0.103	0.103	0.103

Effect of Temperature

The handbook maps no temperature-effect figure to this table.

Other 7049/7149 Tables

7049/7149-T73 Hand forging (Table 3.7.3.0(d))
7049/7149-T73511 Extrusion (Table 3.7.3.0(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.