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7249-T7452 Hand forging: MIL-HDBK-5J Design Allowables

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Material class	Aluminum
Alloy / temper / form	7249 / T7452 / Hand forging
Specifications	AMS 4334
Handbook	MIL-HDBK-5J, 31 January 2003, section 3.7.9.0, Table 3.7.9.0(b) (pdf page 455 of the chapter file)
Dimension bands	10

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		0.000–1.500 in	1.501–2.000 in	2.001–2.500 in	2.501–3.000 in	3.001–3.500 in	3.501–3.900 in	3.901–4.500 in	4.501–5.000 in	5.001–5.500 in	5.501–6.000 in
Specification		AMS 4334	AMS 4334	AMS 4334	AMS 4334	AMS 4334	AMS 4334	AMS 4334	AMS 4334	AMS 4334	AMS 4334
Basis		S	S	S	S	S	S	S	S	S	S
F_tu, ksi	L	76	75	74	73	72	71	69	68	67	66
	LT	76	75	74	73	72	71	69	68	67	66
	ST	…	…	…	…	72	71	69	68	67	66
F_ty, ksi	L	68	67	66	64	63	61	59	58	56	55
	LT	68	67	66	64	63	61	59	58	56	55
	ST	…	…	…	…	59	58	57	56	54	53
F_cy, ksi	L	66	65	64	62	61	59	57	56	54	53
	LT	70	69	68	66	65	63	61	60	58	57
	ST	73	72	71	68	67	65	63	62	60	59
F_su, ksi	L	49	48	47	47	46	46	44	44	43	42
	LT	49	48	47	47	46	46	44	44	43	42
	ST	49	48	47	47	46	46	44	44	43	42
F_bru (e/D = 1.5), ksi	L	107	106	104	103	101	100	97	96	94	93
	LT	107	106	104	103	101	100	97	96	94	93
	ST	107	106	104	103	101	100	97	96	94	93
F_bru (e/D = 2.0), ksi	L	137	135	134	132	130	128	125	123	121	119
	LT	137	135	134	132	130	128	125	123	121	119
	ST	137	135	134	132	130	128	125	123	121	119
F_bry (e/D = 1.5), ksi	L	94	93	91	88	87	84	82	80	77	76
	LT	94	93	91	88	87	84	82	80	77	76
	ST	94	93	91	88	87	84	82	80	77	76
F_bry (e/D = 2.0), ksi	L	109	107	106	102	101	98	94	93	90	88
	LT	109	107	106	102	101	98	94	93	90	88
	ST	109	107	106	102	101	98	94	93	90	88
e, %	L	12	12	12	12	12	12	12	12	12	12
	LT	10	10	10	10	10	10	10	10	10	10
	ST	5	5	5	5	5	5	5	5	5	5
E, Msi		10.1	10.1	10.1	10.1	10.1	10.1	10.1	10.1	10.1	10.1
E_c, Msi		10.4	10.4	10.4	10.4	10.4	10.4	10.4	10.4	10.4	10.4
G, Msi		3.8	3.8	3.8	3.8	3.8	3.8	3.8	3.8	3.8	3.8
ν		0.33	0.33	0.33	0.33	0.33	0.33	0.33	0.33	0.33	0.33

Effect of Temperature

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

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.