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7055-T77511 Extrusion: MIL-HDBK-5J Design Allowables

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Material class	Aluminum
Alloy / temper / form	7055 / T77511 / Extrusion
Specifications	AMS 4337
Handbook	MIL-HDBK-5J, 31 January 2003, section 3.7.5.0, Table 3.7.5.0(e) (pdf page 367 of the chapter file)
Dimension bands	1
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		0.500–1.500 in
Specification		AMS 4337
Basis		A	B
F_tu, ksi	L	94	95
F_tu, ksi	LT	88	90
F_ty, ksi	L	90	93
F_ty, ksi	LT	84	88
F_cy, ksi	L	92	94
F_cy, ksi	LT	89	92
F_su, ksi	L	48	49
F_su, ksi	LT	48	49
F_bru (e/D = 1.5), ksi	L	128	131
F_bru (e/D = 1.5), ksi	LT	128	131
F_bru (e/D = 2.0), ksi	L	167	169
F_bru (e/D = 2.0), ksi	LT	167	169
F_bry (e/D = 1.5), ksi	L	109	113
F_bry (e/D = 1.5), ksi	LT	109	113
F_bry (e/D = 2.0), ksi	L	131	135
F_bry (e/D = 2.0), ksi	LT	131	135
e, %	L	9	9
e, %	LT	5	5
E, Msi		10.4	10.4
E_c, Msi		11	11
ν		0.33	0.33
ρ, lb/in3		0.103	0.103

Effect of Temperature

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

Other 7055 Tables

7055-T74511 Extrusion (Table 3.7.5.0(b))
7055-T76511 Extrusion (Table 3.7.5.0(c))
7055-T7751 Plate (Table 3.7.5.0(d))

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from the chapter tables; check the printed table before use in a certified analysis, and note that MIL-HDBK-5J was superseded by MMPDS, whose later editions may differ.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.