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7055-T74511 Extrusion: MIL-HDBK-5J Design Allowables

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Material class	Aluminum
Alloy / temper / form	7055 / T74511 / Extrusion
Specifications	AMS 4324
Handbook	MIL-HDBK-5J, 31 January 2003, section 3.7.5.0, Table 3.7.5.0(b) (pdf page 364 of the chapter file)
Dimension bands	3
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		0.000–0.249 in		0.250–0.499 in		0.500–3.000 in
Specification		AMS 4324		AMS 4324		AMS 4324
Basis		A	B	A	B	A	B
F_tu, ksi	L	83	84	84	85	85	87
F_tu, ksi	LT	78	79	79	80	80	82
F_ty, ksi	L	76	78	77	79	78	80
F_ty, ksi	LT	72	74	73	75	74	76
F_cy, ksi	L	76	78	77	79	78	80
F_cy, ksi	LT	77	79	78	80	79	81
F_su, ksi	L	43	44	46	45	45	46
F_su, ksi	LT	43	44	46	45	45	46
F_bru (e/D = 1.5), ksi	L	115	116	116	117	117	120
F_bru (e/D = 1.5), ksi	LT	115	116	116	117	117	120
F_bru (e/D = 2.0), ksi	L	151	152	152	154	154	158
F_bru (e/D = 2.0), ksi	LT	151	152	152	154	154	158
F_bry (e/D = 1.5), ksi	L	96	99	97	100	99	101
F_bry (e/D = 1.5), ksi	LT	96	99	97	100	99	101
F_bry (e/D = 2.0), ksi	L	114	117	116	119	117	120
F_bry (e/D = 2.0), ksi	LT	114	117	116	119	117	120
e, %	L	8	8	8	8	8	8
e, %	LT	…	…	…	…	…	…
E, Msi		10.3	10.3	10.3	10.3	10.3	10.3
E_c, Msi		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
ν		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

Effect of Temperature

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

Other 7055 Tables

7055-T76511 Extrusion (Table 3.7.5.0(c))
7055-T7751 Plate (Table 3.7.5.0(d))
7055-T77511 Extrusion (Table 3.7.5.0(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from the chapter tables; check the printed table before use in a certified analysis, and note that MIL-HDBK-5J was superseded by MMPDS, whose later editions may differ.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.