HASTELLOY^® X alloy Information

A nickel-base alloy with an exceptional combination of oxidation resistance, fabricability and high-temperature strength.

HASTELLOY^® X alloy Site

Principal Features

Creep and Stress-Rupture Strengths

Tensile Properties

Physical Properties

Oxidation

Carburization

Health and Safety

HASTELLOY^® X alloy
Technical Briefs

HASTELLOY^® X alloy
Wire Information

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Typical Tensile Properties

Average Room Temperature Tensile Data*

		Ultimate Tensile Strength		Yield Strength at 0.2% Offset		Elongation in 2 in. (50.8mm)
Form	Condition	Ksi	MPa	Ksi	MPa	%

Sheet, 0.091 to 0.312 in. (2.3 to 7.9 mm) thick	Heat-treated at 2150°F (1177°C), Rapid Cooled	109.5	755	55.9	385	45
Plate, 3/8 to 2 in. (9.5 to 50.8 mm) thick	Heat-treated at 2150°F (1177°C), Rapid Cooled	107.7	743	49.1	339	51
* Based on 58-69 tests.

Average Tensile Data*

Form	Condition	Test Temperature		Ultimate Tensile Strength		Yield Strength at 0.2% Offset		Elongation in 2in. (50.8 mm)
Form	Condition	°F	°C	Ksi	MPa	Ksi	MPa	%

Sheet, 0.045 to 0.060 in. (1.1 to 1.5 mm) thick	Bright Annealed at 2150°F (1177°C), Hydrogen Cooled	Room		111.2	767	54.9	379	44
		1000	538	89.0	614	35.6	245	49
		1200	649	84.2	581	35.4	244	54
		1400	760	67.1	463	34.4	237	53
		1600	871	44.9	310	28.1	194	59
		1800	982	25.6	177	13.2	91	66
		2000	1093	14.0	97	6.3	43	60

* Strain rate was 0.005-inch/inch/minute to 0.2% yield point and 0.5-inch/inch/minute to failure.

Average Effect of Cryogenic Temperatures on Tensile Properties

Form	Condition	Test Temperature		Ultimate Tensile Strength		Yield Strength at 0.2% Offset		Elongation in 2in. (50.8 mm)
Form	Condition	°F	°C	Ksi	MPa	Ksi	MPa	%

Plate	Heat-treated at 2150°F (1177°C), Rapid Cooled	-321	-196	150.2	1036	-		46
		-108	-78	118.8	819	-		51
		72	22	104.5	721	47.0	324	46

Average Short-Term Tensile Data, Cold-Reduction and Welded 0.109 in. (2.8 mm) Sheet

		Ultimate Tensile Strength		Yield Strength at 0.2% Offset
Condition	Form	Ksi	MPa	Ksi	MPa

As Cold-Reduced	Reduced 5 percent	123.0	848	82.0	565
	Reduced 15 percent	137.0	945	106.0	731
	Reduced 30 percent	161.0	1110	137.0	945
Cold-Reduced and Welded, As-Welded	Reduced 5 percent	114.9	792	68.0	469
	Reduced 15 percent	113.1	780	72.1	497
	Reduced 30 percent	112.9	778	69.9	482

NOTE: All cold-reduced sheet and the various weld samples were produced from material which had been solution heat-treated prior to cold reduction or welding.
All data were obtained at room temperature and are the result of a limited number of tests.

Average Short-Time Tensile Data, Weldments

Condition	Weld Method	Material	Ultimate Tensile Strength		Yield Strength at 0.2% Offset		Elongation in 2in. (50.8 mm)
Condition	Weld Method	Material	Ksi	MPa	Ksi	MPa	%

As-Welded	Shielded Metal Arc (covered electrodes)	Sheet, 0.125 in. (3.2 mm)	110.2	760	55.2	381	26
		Plate, 0.250 in. (6.4 mm)	109.8	757	56.7	391	26
		Plate, 0.375 in. (9.5 mm)	110.2	760	55.4	382	26

As-Welded	Gas Tungsten Arc (TIG)	Sheet, 0.125 in. (3.2 mm)	110.2	759	59.1	407	26
		Plate, 0.250 in. (6.4 mm)	107.1	738	53.1	365	25
		Plate, 0.375 in. (9.5 mm)	107.6	742	54.9	379	22

As-Welded	Gas Metal Arc (MIG)	Sheet, 0.125 in. (3.2 mm)	103.7	715	53.1	366	22
		Plate, 0.250 in. (6.4 mm)	110.8	764	55.0	379	33
		Plate, 0.375 in. (9.5 mm)	106.4	734	57.0	393	24

Average Aged Tensile Data, Room Temperature*

Form	Aging Temperature		Aging Time,	Ultimate Tensile Strength		Yield Strength at 0.2% Offset		Elongation in 2in. (50.8 mm)
Form	°F	°C	Hours	Ksi	MPa	Ksi	MPa	%

Sheet, 0.125 in. (3.2 mm) thick	SHT		-	114.3	788	55.2	381	57

	1200	649	1000	125.0	862	61.0	421	35
			4000	143.8	991	76.2	525	19
			8000	147.9	1020	78.6	542	19
			16000	148.0	1020	78.1	538	15

	1400	760	1000	137.0	945	65.3	450	23
			4000	134.6	928	64.3	443	18
			8000	131.0	903	61.3	423	19
			16000	126.1	869	59.3	409	17

	1600	871	1000	123.0	848	53.2	369	26
			4000	117.9	813	49.3	340	29
			8000	115.0	793	48.2	332	30
			16000	111.1	766	46.1	318	29

Plate, 1/2 in. (12.7 mm) thick	SHT			109.9	758	49.5	341	47

	1200	649	1000	121.4	837	56.5	390	33
			4000	142.5	983	73.4	506	18
			8000	143.6	990	73.0	503	18

	1400	760	1000	129.4	892	56.9	392	23
			4000	129.9	896	56.9	392	21
			8000	129.2	891	56.3	388	20

	1600	871	1000	119.0	820	47.6	328	31
			4000	116.7	805	44.9	310	28
			8000	113.7	784	43.9	303	26
			16000	109.0	752	42.7	294	26

*Test data for each form are from a single heat. SHT = Solution heat-treated (not aged)

Average Welded and Aged Tensile Data, Room Temperature*

Form	Aging Temperature		Aging Time,	Ultimate Tensile Strength		Yield Strength at 0.2% Offset		Elongation in 2in. (50.8 mm)	Reduction of area
Form	°F	°C	Hours	Ksi	MPa	Ksi	MPa	%	%

Plate, 1/2 in. (12.7 mm) thick	1600	871	8000	109.0	752	47.9	330	-	22

Gas Tungsten Arc Welded Plate, 1/2 in. (12.7 mm) thick	1200	649	1000	126.9	875	66.0	455	-	33
			4000	150.1	1035	86.5	596	-	19
			8000	145.5	1003	82.9	572	-	18

	1400	760	1000	128.2	884	58.2	401	-	19
			4000	127.4	878	62.3	430	-	18
			8000	125.2	863	62.3	430	-	15

	1600	871	4000	105.3	726	49.7	343	-	15
			8000	98.0	676	46.9	323	-	16

All Weld Metal**	1200	649	1000	123.0	848	87.5	603	4	8
			4000	139.3	960	86.0	593	7	8
			8000	131.8	909	86.8	598	6	9

	1400	760	1000	113.5	783	62.7	432	10	12
			4000	110.5	762	60.6	418	7	6
			8000	97.7	674	59.8	412	4	7

	1600	871	1000	92.8	640	48.3	330	8	9
			8000	92.7	639	46.3	319	13	11

Test data for each form are from a single heat. *Single test data. Gas tungsten arc welded.

Haynes International, Inc. 800-354-0806 765-456-6012

HASTELLOY® X alloy Information

A nickel-base alloy with an exceptional combination of oxidation resistance, fabricability and high-temperature strength.

HASTELLOY^® X alloy Information