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2026-T3511 Extrusions: MIL-HDBK-5J Design Allowables

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Material class	Aluminum
Alloy / temper / form	2026 / T3511 / Extrusions
Specifications	AMS 4338
Handbook	MIL-HDBK-5J, 31 January 2003, section 3.2.5.0, Table 3.2.5.0(b) (pdf page 153 of the chapter file)
Dimension bands	5
Density	0.1 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		0.000–0.249 in		0.250–0.499 in		0.500–1.499 in		1.500–2.249 in		2.250–3.250 in
Specification		AMS 4338		AMS 4338		AMS 4338		AMS 4338		AMS 4338
Basis		A	B	A	B	A	B	A	B	S
F_tu, ksi	L	66	69	70	72	72	75	73	76	73
F_tu, ksi	LT	58	61	62	64	66	67	64	67	61
F_ty, ksi	L	48	51	52	53	53	56	54	57	54
F_ty, ksi	LT	41	44	45	46	46	48	44	49	42
F_cy, ksi	L	43	45	46	47	47	47	49	52	50
F_cy, ksi	LT	42	45	46	46	46	49	45	47	43
F_su, ksi	L	37	39	37	38	32	33	32	33	32
F_su, ksi	LT	37	39	37	38	32	33	32	33	32
F_bru (e/D = 1.5), ksi	L	90	94	92	95	87	90	85	89	85
F_bru (e/D = 1.5), ksi	LT	90	94	92	95	87	90	85	89	85
F_bru (e/D = 2.0), ksi	L	112	117	113	117	109	114	108	112	105
F_bru (e/D = 2.0), ksi	LT	112	117	113	117	109	114	108	112	105
F_bry (e/D = 1.5), ksi	L	62	66	66	67	61	64	61	64	61
F_bry (e/D = 1.5), ksi	LT	62	66	66	67	61	64	61	64	61
F_bry (e/D = 2.0), ksi	L	76	81	81	83	76	81	76	80	76
F_bry (e/D = 2.0), ksi	LT	76	81	81	83	76	81	76	80	76
e, %	L	11	11	12	12	11	11	11	11	10
e, %	LT	…	…	…	…	8	8	8	8	8
E, Msi		10.7	10.7	10.7	10.7	10.7	10.7	10.7	10.7	10.7
E_c, Msi		10.9	10.9	10.9	10.9	10.9	10.9	10.9	10.9	10.9
G, Msi		4	4	4	4	4	4	4	4	4
ν		0.33	0.33	0.33	0.33	0.33	0.33	0.33	0.33	0.33
ρ, lb/in3		0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1

Effect of Temperature

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

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from the chapter tables; check the printed table before use in a certified analysis, and note that MIL-HDBK-5J was superseded by MMPDS, whose later editions may differ.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