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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	2713 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		0–2 in (0–50.8 mm), area 0–256 in2 (0–165200 mm²)	2.001–4.000 in (50.83–101.6 mm), area 0–256 in2 (0–165200 mm²)	4.001–8.000 in (101.6–203.2 mm), area 0–256 in2 (0–165200 mm²)
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, MPa	L	262	262	255.1
	LT	262	262	255.1
	ST	…	255.1	241.3
F_ty, MPa	L	241.3	241.3	234.4
	LT	241.3	241.3	234.4
	ST	…	227.5	220.6
F_cy, MPa	L	248.2	248.2	241.3
	LT	248.2	248.2	241.3
	ST	…	234.4	227.5
F_su, MPa	L	172.4	172.4	165.5
	LT	172.4	172.4	165.5
	ST	…	172.4	165.5
F_bru (e/D = 1.5), MPa	L	420.6	420.6	406.8
	LT	420.6	420.6	406.8
	ST	…	420.6	406.8
F_bru (e/D = 2.0), MPa	L	524	524	510.2
	LT	524	524	510.2
	ST	…	524	510.2
F_bry (e/D = 1.5), MPa	L	372.3	372.3	365.4
	LT	372.3	372.3	365.4
	ST	…	372.3	365.4
F_bry (e/D = 2.0), MPa	L	420.6	420.6	406.8
	LT	420.6	420.6	406.8
	ST	…	420.6	406.8
e, %	L	10	10	8
	LT	8	8	6
	ST	…	5	4
E, GPa		68.26	68.26	68.26
E_c, GPa		69.64	69.64	69.64
G, GPa		26.2	26.2	26.2
ν		0.33	0.33	0.33
ρ, kg/m³		2713	2713	2713

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.