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6061-T6, T6510, and T6511 Extruded rod, bar, and shapes: MIL-HDBK-5J Design Allowables

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Material class	Aluminum
Alloy / temper / form	6061 / T6, T6510, and T6511 / Extruded rod, bar, and shapes
Specifications	AMS 4150, AMS 4173 & AMS-QQ-A-200/8
Handbook	MIL-HDBK-5J, 31 January 2003, section 3.6.2.0, Table 3.6.2.0(g) (pdf page 272 of the chapter file)
Dimension bands	2
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		0–1 in, area 0–32 in2		1.001–6.500 in, area 0–32 in2
Specification		AMS 4150, AMS 4173 & AMS-QQ-A-200/8		AMS 4150, AMS 4173 & AMS-QQ-A-200/8
Basis		A	B	A	B
F_tu, ksi	L	38	41	38	41
F_tu, ksi	LT	37	40	33	35
F_ty, ksi	L	35	38	35	38
F_ty, ksi	LT	33	36	28	31
F_cy, ksi	L	34	37	34	37
F_cy, ksi	LT	35	38	30	33
F_su, ksi	L	26	28	19	21
F_su, ksi	LT	26	28	19	21
F_bru (e/D = 1.5), ksi	L	64	69	52	57
F_bru (e/D = 1.5), ksi	LT	64	69	52	57
F_bru (e/D = 2.0), ksi	L	82	88	69	74
F_bru (e/D = 2.0), ksi	LT	82	88	69	74
F_bry (e/D = 1.5), ksi	L	54	58	42	46
F_bry (e/D = 1.5), ksi	LT	54	58	42	46
F_bry (e/D = 2.0), ksi	L	60	65	50	55
F_bry (e/D = 2.0), ksi	LT	60	65	50	55
e, %	L	10	…	10	…
e, %	LT	…	…	…	…
E, Msi		9.9	9.9	9.9	9.9
E_c, Msi		10.1	10.1	10.1	10.1
G, Msi		3.8	3.8	3.8	3.8
ν		0.33	0.33	0.33	0.33
ρ, lb/in3		0.098	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.

Strength allowables at temperature, percent of room temperature

Moduli at temperature

Elongation and exposure effects

°F	F_tu	F_ty
-300	125.5	115
-200	114.1	108.1
-100	108.4	105.7
0	103.9	102.9
100	98.1	98.4
200	91	91.9
300	80.1	83.2
400	63.8	69
500	40.7	44.1
600	21.3	19.1
700		8.2
800		4

Factors in percent of the room-temperature allowable.

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-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-T6a and T652 Hand forging (Table 3.6.2.0(f))
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.