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6061-T6a and T652 Hand forging: MIL-HDBK-5J Design Allowables

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Material class	Aluminum
Alloy / temper / form	6061 / T6a and T652 / Hand forging
Specifications	AMS 4127, AMS 4248, AMS-A-22771, and AMS-QQ-A-367
Handbook	MIL-HDBK-5J, 31 January 2003, section 3.6.2.0, Table 3.6.2.0(f) (pdf page 271 of the chapter file)
Dimension bands	3
Density	0.098 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		0–2 in, area 0–256 in2	2.001–4.000 in, area 0–256 in2	4.001–8.000 in, area 0–256 in2
Specification		AMS 4127, AMS 4248, AMS-A-22771, and AMS-QQ-A-367	AMS 4127, AMS 4248, AMS-A-22771, and AMS-QQ-A-367	AMS 4127, AMS 4248, AMS-A-22771, and AMS-QQ-A-367
Basis		S	S	S
F_tu, ksi	L	38	38	37
	LT	38	38	37
	ST	…	37	35
F_ty, ksi	L	35	35	34
	LT	35	35	34
	ST	…	33	32
F_cy, ksi	L	36	36	35
	LT	36	36	35
	ST	…	34	33
F_su, ksi	L	25	25	24
	LT	25	25	24
	ST	…	25	24
F_bru (e/D = 1.5), ksi	L	61	61	59
	LT	61	61	59
	ST	…	61	59
F_bru (e/D = 2.0), ksi	L	76	76	74
	LT	76	76	74
	ST	…	76	74
F_bry (e/D = 1.5), ksi	L	54	54	53
	LT	54	54	53
	ST	…	54	53
F_bry (e/D = 2.0), ksi	L	61	61	59
	LT	61	61	59
	ST	…	61	59
e, %	L	10	10	8
	LT	8	8	6
	ST	…	5	4
E, Msi		9.9	9.9	9.9
E_c, Msi		10.1	10.1	10.1
G, Msi		3.8	3.8	3.8
ν		0.33	0.33	0.33
ρ, lb/in3		0.098	0.098	0.098

Effect of Temperature

Percent of the room-temperature value against temperature, digitized from the handbook figures (the shortest exposure of each figure, every 10 °F). Strength curves give the allowable at temperature; "after exposure" curves give the room-temperature property after a soak at that temperature.

Moduli at temperature

Other 6061 Tables

6061-T4 Drawn tube (Table 3.6.2.0(c))
6061-T4 Rolled, drawn, or cold-finished rod and special shapes (Table 3.6.2.0(d))
6061-T4 Sheet (Table 3.6.2.0(b))
6061-T4, T4510, / and T4511 Extruded rod, bar, and shapes (Table 3.6.2.0(g))
6061-T42 Drawn tube (Table 3.6.2.0(c))
6061-T42 Extruded rod, bar, and shapes (Table 3.6.2.0(g))
6061-T42 Plate (Table 3.6.2.0(b))
6061-T42 Rolled, drawn, or cold-finished rod and special shapes (Table 3.6.2.0(d))
6061-T42 Sheet (Table 3.6.2.0(b))
6061-T451 Plate (Table 3.6.2.0(b))
6061-T451 Rolled, drawn, or cold-finished rod and special shapes (Table 3.6.2.0(d))
6061-T6 Rolled, drawn, or cold-finished rod and special shapes (Table 3.6.2.0(d))
6061-T6 and T62 Sheet (Table 3.6.2.0(b))
6061-T6 and T652 Die forging (Table 3.6.2.0(e))
6061-T6, T6510, and T6511 Extruded rod, bar, and shapes (Table 3.6.2.0(g))
6061-T62 Extruded rod, bar, and shapes (Table 3.6.2.0(g))
6061-T62 Rolled, drawn, or cold-finished rod and special shapes (Table 3.6.2.0(d))
6061-T651 Rolled, drawn, or cold-finished rod and special shapes (Table 3.6.2.0(d))
6061-T651 and T62 Plate (Table 3.6.2.0(b))
6061-T6b and T62 Drawn tube (Table 3.6.2.0(c))

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.