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7050-T74511 Extrusion: MIL-HDBK-5J Design Allowables

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Material class	Aluminum
Alloy / temper / form	7050 / T74511 / Extrusion
Specifications	AMS 4342
Handbook	MIL-HDBK-5J, 31 January 2003, section 3.7.4.0, Table 3.7.4.0(e) (pdf page 330 of the chapter file)
Dimension bands	5
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		0–1 in, area 0–32 in2	1.001–2.000 in, area 0–32 in2	2.001–3.000 in, area 0–32 in2	3.001–4.000 in, area 0–32 in2	4.001–5.000 in, area 0–32 in2
Specification		AMS 4342	AMS 4342	AMS 4342	AMS 4342	AMS 4342
Basis		S	S	S	S	S
F_tu, ksi	L	73	73	73	73	73
F_tu, ksi	LT	71	69	68	64	64
F_ty, ksi	L	63	63	63	63	63
F_ty, ksi	LT	60	59	58	56	54
F_cy, ksi	L	63	63	63	64	64
F_cy, ksi	LT	63	62	61	59	57
F_su, ksi	L	41	40	40	39	38
F_su, ksi	LT	41	40	40	39	38
F_bru (e/D = 1.5), ksi	L	107	104	100	95	91
F_bru (e/D = 1.5), ksi	LT	107	104	100	95	91
F_bru (e/D = 2.0), ksi	L	139	135	130	125	121
F_bru (e/D = 2.0), ksi	LT	139	135	130	125	121
F_bry (e/D = 1.5), ksi	L	86	84	82	80	78
F_bry (e/D = 1.5), ksi	LT	86	84	82	80	78
F_bry (e/D = 2.0), ksi	L	106	100	98	95	92
F_bry (e/D = 2.0), ksi	LT	106	100	98	95	92
e, %	L	7	7	7	7	7
e, %	LT	…	…	…	…	…
E, Msi		10.3	10.3	10.3	10.3	10.3
E_c, Msi		10.7	10.7	10.7	10.7	10.7
G, Msi		3.9	3.9	3.9	3.9	3.9
ν		0.33	0.33	0.33	0.33	0.33
ρ, lb/in3		0.102	0.102	0.102	0.102	0.102

Effect of Temperature

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

Other 7050 Tables

7050-T73511 Extrusion (Table 3.7.4.0(e))
7050-T74 Die forging (Table 3.7.4.0(c))
7050-T7451 Plate (Table 3.7.4.0(b))
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from the chapter tables; check the printed table before use in a certified analysis, and note that MIL-HDBK-5J was superseded by MMPDS, whose later editions may differ.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.