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Inconel 718-Solution treated and aged per indicated specificat Sheet: MIL-HDBK-5J Design Allowables

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Material class	Heat-Resistant
Alloy / temper / form	Inconel 718 / Solution treated and aged per indicated specificat / Sheet
Specifications	AMS 5596
Handbook	MIL-HDBK-5J, 31 January 2003, section 6.3.5.0, Table 6.3.5.0(b) (pdf page 52 of the chapter file)
Dimension bands	1
Density	0.297 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		0.010–0.187 in
Specification		AMS 5596
Basis		A	B
F_tu, ksi	L	180	192
F_tu, ksi	LT	180	191
F_ty, ksi	L	145	156
F_ty, ksi	LT	147	158
F_cy, ksi	L	155	167
F_cy, ksi	LT	158	170
F_su, ksi	L	124	132
F_su, ksi	LT	124	132
F_bru (e/D = 1.5), ksi	L	291	309
F_bru (e/D = 1.5), ksi	LT	291	309
F_bru (e/D = 2.0), ksi	L	380	403
F_bru (e/D = 2.0), ksi	LT	380	403
F_bry (e/D = 1.5), ksi	L	208	223
F_bry (e/D = 1.5), ksi	LT	208	223
F_bry (e/D = 2.0), ksi	L	241	259
F_bry (e/D = 2.0), ksi	LT	241	259
e, %	L	…	…
e, %	LT	12	12
E, Msi		29.4	29.4
E_c, Msi		30.9	30.9
G, Msi		11.4	11.4
ν		0.29	0.29
ρ, lb/in3		0.297	0.297

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

°F	F_tu	F_ty
-300	115.8	115.8
-200	111.1	111.1
-100	106.6	106.6
0	102.5	102.5
100	99.8	99.8
200	97.2	97.2
300	95.9	95.9
400	94.5	94.5
500	93.8	93.8
600	92.8	92.8
700	92.1	92.1
800	91.2	91.2
1000	89.3	89.3
1200	80.6	80.6

Factors in percent of the room-temperature allowable.

Other Inconel 718 Tables

Inconel 718-Solution treated and aged per indicated specificat Bar (Table 6.3.5.0(c))
Inconel 718-Solution treated and aged per indicated specificat Forging (Table 6.3.5.0(c))
Inconel 718-Solution treated and aged per indicated specificat Plate (Table 6.3.5.0(b))
Inconel 718-Solution treated and aged per indicated specificat Sheet and plate (Table 6.3.5.0(b))
Inconel 718-Solution treated and aged per indicated specificat Tubing (Table 6.3.5.0(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.