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Hastelloy X-Solution treated (annealed) Sheet and plate: MIL-HDBK-5J Design Allowables

show US units (ksi, Msi, lb/in³) open the MIL-HDBK-5J tool compare against temperature find alternatives

Material class	Heat-Resistant
Alloy / temper / form	Hastelloy X / Solution treated (annealed) / Sheet and plate
Specifications	AMS 5536
Handbook	MIL-HDBK-5J, 31 January 2003, section 6.3.1.0, Table 6.3.1.0(b) (pdf page 22 of the chapter file)
Dimension bands	6
Density	8221 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		0.000–0.010 in (0–0.254 mm)	0.010–0.019 in (0.254–0.4826 mm)	0.020–0.100 in (0.508–2.54 mm)		0.101–0.187 in (2.565–4.75 mm)	0.188–2.000 in (4.775–50.8 mm)	2– in (50.8 mm)
Specification		AMS 5536	AMS 5536	AMS 5536		AMS 5536	AMS 5536	AMS 5536
Basis		S	S	A	B	S	S	S
F_tu, MPa	LT	723.9	723.9	703.3	730.8	723.9	689.5	655
F_ty, MPa	LT	310.3	310.3	303.4	324.1	310.3	275.8	275.8
e, %	LT	…	29	35	35	35	35	35
E, GPa		205.5	205.5	205.5	205.5	205.5	205.5	205.5
E_c, GPa		205.5	205.5	205.5	205.5	205.5	205.5	205.5
G, GPa		77.91	77.91	77.91	77.91	77.91	77.91	77.91
ν		0.32	0.32	0.32	0.32	0.32	0.32	0.32
ρ, kg/m³		8221	8221	8221	8221	8221	8221	8221

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

°C	F_tu	F_ty
38	98.6	98.6
93	99.3	95.9
149	97.9	93.6
204	96.4	91.7
26	94.8	89.8
316	93	87.9
371	90.6	86.4
427	87.7	85
538	80	80
649	66.6	71.5

Factors in percent of the room-temperature allowable.

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.