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7175-T7452 Hand forging: MIL-HDBK-5J Design Allowables

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Material class	Aluminum
Alloy / temper / form	7175 / T7452 / Hand forging
Specifications	AMS 4149 and AMS-A-22771
Handbook	MIL-HDBK-5J, 31 January 2003, section 3.7.8.0, Table 3.7.8.0(c) (pdf page 442 of the chapter file)
Dimension bands	5
Density	0.101 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		1.001–2.000 in	2.001–3.000 in	3.001–4.000 in	4.001–5.000 in	5.001–6.000 in
Specification		AMS 4149 and AMS-A-22771	AMS 4149 and AMS-A-22771	AMS 4149 and AMS-A-22771	AMS 4149 and AMS-A-22771	AMS 4149 and AMS-A-22771
Basis		S	S	S	S	S
F_tu, ksi	L	71	71	68	65	63
	LT	69	69	67	64	61
	ST	…	67	65	63	60
F_ty, ksi	L	61	61	57	54	51
	LT	58	58	55	52	49
	ST	…	54	51	49	46
F_cy, ksi	L	58	58	55	52	49
	LT	61	61	57	54	50
	ST	60	60	57	54	51
F_bru (e/D = 1.5), ksi	L	102	102	99	95	90
	LT	102	102	99	95	90
	ST	102	102	99	95	90
F_bru (e/D = 2.0), ksi	L	133	133	130	124	118
	LT	133	133	130	124	118
	ST	133	133	130	124	118
F_bry (e/D = 1.5), ksi	L	80	82	80	76	72
	LT	80	82	80	76	72
	ST	80	82	80	76	72
F_bry (e/D = 2.0), ksi	L	95	98	95	92	87
	LT	95	98	95	92	87
	ST	95	98	95	92	87
e, %	L	9	9	9	8	8
	LT	5	5	5	5	5
	ST	…	4	4	4	4
E, Msi		10.2	10.2	10.2	10.2	10.2
E_c, Msi		10.5	10.5	10.5	10.5	10.5
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		0.101	0.101	0.101	0.101	0.101

Effect of Temperature

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

Other 7175 Tables

7175-T66 Die forging (Table 3.7.8.0(b))
7175-T73511 Extrusion (Table 3.7.8.0(d))
7175-T74 Hand forging (Table 3.7.8.0(c))
7175-T74a,b Die forging (Table 3.7.8.0(b))

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from the chapter tables; check the printed table before use in a certified analysis, and note that MIL-HDBK-5J was superseded by MMPDS, whose later editions may differ.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