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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	2796 kg/m³

Design Mechanical and Physical Properties (room temperature)

Converted from the handbook table (ksi, Msi, lb/in³) and rounded to 4 significant figures; dimension bands in inches with mm in parentheses. 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 (25.43–50.8 mm)	2.001–3.000 in (50.83–76.2 mm)	3.001–4.000 in (76.23–101.6 mm)	4.001–5.000 in (101.6–127 mm)	5.001–6.000 in (127–152.4 mm)
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, MPa	L	489.5	489.5	468.8	448.2	434.4
	LT	475.7	475.7	461.9	441.3	420.6
	ST	…	461.9	448.2	434.4	413.7
F_ty, MPa	L	420.6	420.6	393	372.3	351.6
	LT	399.9	399.9	379.2	358.5	337.8
	ST	…	372.3	351.6	337.8	317.2
F_cy, MPa	L	399.9	399.9	379.2	358.5	337.8
	LT	420.6	420.6	393	372.3	344.7
	ST	413.7	413.7	393	372.3	351.6
F_bru (e/D = 1.5), MPa	L	703.3	703.3	682.6	655	620.5
	LT	703.3	703.3	682.6	655	620.5
	ST	703.3	703.3	682.6	655	620.5
F_bru (e/D = 2.0), MPa	L	917	917	896.3	854.9	813.6
	LT	917	917	896.3	854.9	813.6
	ST	917	917	896.3	854.9	813.6
F_bry (e/D = 1.5), MPa	L	551.6	565.4	551.6	524	496.4
	LT	551.6	565.4	551.6	524	496.4
	ST	551.6	565.4	551.6	524	496.4
F_bry (e/D = 2.0), MPa	L	655	675.7	655	634.3	599.8
	LT	655	675.7	655	634.3	599.8
	ST	655	675.7	655	634.3	599.8
e, %	L	9	9	9	8	8
	LT	5	5	5	5	5
	ST	…	4	4	4	4
E, GPa		70.33	70.33	70.33	70.33	70.33
E_c, GPa		72.39	72.39	72.39	72.39	72.39
G, GPa		26.89	26.89	26.89	26.89	26.89
ν		0.33	0.33	0.33	0.33	0.33
ρ, kg/m³		2796	2796	2796	2796	2796

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.