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Hastelloy X
Introduction to Hastelloy X
Hastelloy is a registered trademark name of Haynes International, Inc. The Hastelloy trademark is applied as the prefix name of a range of corrosion-resistant nickel based alloys promoted under the term “superalloys” or “high-performance alloys”.
Within corrosion applications, Hastelloy alloys may be chosen as a trade-off between performance, cost and other technical issues like e.g. suitability for welding. Despite the fact that Hastelloy alloys generally show less attractive economy in acids compared Tantaline (Tantaline is recognized as the leading performance/price option), Hastelloy is widely used in a number of industries.
Hastelloy X is an nickel-chromium-iron-molybdenum alloy developed for high temperature apllicacations.
Typical Application of Hastelloy X
Hastelloy X is chosen for many for use in furnace applications because it has unusual resistance to oxidizing, reducing, and neutral atmosphere. Hastelloy X is also used jet engine tailpipes, afterburner components, cabin heaters, and other aircraft parts. Hastelloy X is also It has also been found to be resistant in petrochemical applications.
Chemical Composition of Hastelloy X
|
Element
|
Min
|
Max
|
|
Molybdenum
|
8.00
|
10.0
|
|
Chromium
|
20.5
|
23.0
|
|
Iron
|
17.0
|
20.0
|
|
Tungsten
|
0.20
|
1.00
|
|
Cobalt
|
0.50
|
2.50
|
|
Carbon
|
0.05
|
0.015
|
|
Silicon
|
--
|
1.00
|
|
Manganese
|
--
|
1.00
|
|
Boron
|
--
|
0.01
|
|
Phosphorus
|
--
|
0.04
|
|
Sulfur
|
--
|
0.03
|
|
Nickel
|
Remainder
|
Physical Properties of Hastelloy X
|
Physical Properties
|
°F
|
British Units
|
°C
|
Metric Units
|
|
Density
|
72
|
0.297 lb./cubic in.
|
22
|
8.22 g/cubic cm.
|
|
Melting Range
|
2300-
2470
|
1260-
1355
|
|
Electrical
Resistivity
|
72
|
46.6 microhm-in.
|
22
|
1.18 microhm-m
|
|
Mean Coefficient
of Thermal
Expansion
|
79-200
|
7.7 microin./in.-°F
|
26-100
|
13.8 X 10(-6)m/m-K
|
|
79-1000
|
8.4 microin./in.-°F
|
26-500
|
14.9 X 10(-6)m/m-K
|
|
79-1200
|
8.6 microin./in.-°F
|
26-600
|
15.3 X 10(-6)m/m-K
|
|
79-1350
|
8.8 microin./in.-°F
|
26-700
|
15.7 X 10(-6)m/m-K
|
|
79-1500
|
8.9 microin./in.-°F
|
26-800
|
16.0 X 10(-6)m/m-K
|
|
76-1650
|
9.1 microin./in.-°F
|
26-900
|
16.3 X 10(-6)m/m-K
|
|
79-1800
|
9.2 microin./in.-°F
|
26-1000
|
16.6 X 10(-6)m/m-K
|
|
Thermal
Conductivity
|
70
|
63 Btu-in/ft²-hr-°F
|
20
|
9.7* W/m-K
|
|
200
|
76 Btu-in/ft²-hr-°F
|
100
|
11.1 W/m-K
|
|
500
|
98 Btu-in/ft²-hr-°F
|
300
|
14.7 W/m-K
|
|
1100
|
144 Btu-in/ft²-hr-°F
|
600
|
20.6 W/m-K
|
|
1300
|
159 Btu-in/ft²-hr-°F
|
700
|
22.8 W/m-K
|
|
1500
|
174 Btu-in/ft²-hr-°F
|
800
|
25.0 W/m-K
|
|
1700
|
189 Btu-in/ft²-hr-°F
|
900
|
27.4* W/m-K
|
|
Poisson's Ratio
|
-78
22
|
0.328
0.320
|
-108
72
|
0.328
0.320
|
|
Magnetic
Permeability
|
Room
|
<1.002 at 200 oersteds (15,900 A/m)
|
*Extrapolated
Dynamic Modulus of Elasticity of Hastelloy X
|
Form
|
Condition
|
Test Temp,
°F(°C)
|
Average Dynamic Modulus of
Elasticity,10(6) psi (MPa)
|
|
Sheet
|
Heat-treated
at 2150 °F
(1177°C),
Rapid Cooled
|
76 (25)
212 (100)
392 (200)
572 (300)
752 (400)
932 (500)
1112 (600)
1292 (700)
1472 (800)
1652 (900)
1832 (1000)
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28.5 (196,000)
28.0 (193,000)
26.9 (185,000)
26.0 (179,000)
25.0 (172,000)
23.8 (164,000)
22.9 (158,000)
21.8 (150,000)
20.7 (143,000)
19.5 (134,000)
18.3 (126,000)
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Tensile Data of Hastelloy X
perature Tensile Data**
|
Form
|
Condition
|
Ultimate
Tensile
Strength
ksi (MPa)
|
Yield
Strength at
0.2% offset
ksi (MPa)
|
Elongation
in 2" percent
|
|
Sheet, 0.012 to
0.090"
thick
|
Heat treated at
2150 °F (1177°C)
Rapid Cooled
|
110.3 (760)
|
55.1 (380)
|
44
|
|
Sheet,
0.091 to 0.312"
thick
|
Heat treated at
2150 °F (1177°C)
Rapid Cooled
|
109.5 (755)
|
55.9 (385)
|
45
|
|
Plate,
3/8 to 2"
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
Temp.
°F (°C)
|
Ultimate
Tensile
Strength,
Ksi (MPa)
|
Yield
Strength
at 0.2%
offset,
Ksi (MPa)
|
Propor-
tional
Limit,
Ksi (MPa)
|
Elongation
in 2 in.,
(50.8 mm),
percent
|
|
Sheet,
0.109 in.
(2.8 mm),
thick
|
Heat-treated at
2150°F
(1177 °C),
Rapid Cooled
|
Room
400 (204)
800 (427)
1000 (538)
1200 (649)
1400 (760)
1600 (871)
1800 (982)
2000 (1093)
2100 (1149)
2200 (1204)
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113.9 (785)
103.4 (713)
99.7 (687)
94.0 (648)
83.0 (572)
63.1 (435)
36.5 (251)
22.5 (155)
13.0 (90)
7.7 (53)
5.4 (37)
|
52.2 (360)
48.7 (336)
43.7 (301)
41.5 (286)
39.5 (272)
37.8 (261)
25.7 (177)
16.0 (110)
8.0 (55)
4.9 (34)
3.7 (26)
|
22.6 (156)
25.6 (177)
28.0 (193)
27.5 (190)
26.3 (181)
24.6 (170)
14.6 (101)
--
--
--
--
|
43
41
44
45
37
37
51
45
40
31
31
|
Average Aged Tensile Data, Room Temperature
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Form
|
Aging Temp.,
°F (°C)
|
Aging Time, hrs
|
Ultimate
Tensile
Strength
ksi (MPa)
|
Yield
Strength at
0.2% offset
ksi (MPa)
|
Elongation
in 2" percent
|
|
Sheet, 0.125"
thick
|
Solution Heat Treated
|
--
|
114.3 (788)
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55.2 (381)
|
57
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|
1200 (649)
|
1000
4000
8000
16000
|
125.0 (862)
143.8 (991)
147.9 (1020)
149.0 (1020)
|
61.0 (421)
76.2 (525)
78.6 (542)
78.1 (538)
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35
19
19
15
|
|
1400 (760)
|
1000
4000
8000
16000
|
137.0 (945)
134.6 (928)
131.0 (903)
126.1 (869)
|
65.3 (450)
64.3 (443)
61.3 (423)
59.3 (409)
|
23
18
19
17
|
|
1600 (871)
|
1000
4000
8000
16000
|
123.0 (848)
117.9 (813)
115.0 (793)
111.1 (766)
|
53.2 (369)
49.3 (340)
48.2 (332)
46.1 (318)
|
26
29
30
29
|
|
Plate,
1/2" thick
|
Solution Heat Treated
|
--
|
109.9 (758)
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49.5 (341)
|
47
|
|
1200 (649)
|
1000
4000
8000
|
121.4 (837)
142.5 (983)
143.6 (990)
|
56.5 (392)
73.4 (506)
73.0 (503)
|
33
18
18
|
|
1400 (760)
|
1000
4000
8000
|
129.4 (892)
129.9 (896)
129.2 (891)
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56.9 (390)
56.9 (390)
56.3 (388)
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23
21
20
|
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1600 (871)
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1000
4000
8000
16000
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119.0 (820)
116.7 (805)
113.7 (784)
109.0 (752)
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47.6 (328)
44.9 (310)
43.9 (303)
42.7 (294)
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31
28
26
26
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Creep Data of Hastelloy X
Minimum Creep Rate Data, Sheet*
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Test
Temp.,
°F (°C)
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Average Stress for Indicated
Percent/Hour Minimum Creep Rate, Ksi (MPa)
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|
0.0001
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0.001
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0.01
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0.1
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1200 (649)
1400 (760)
1600 (871)
1800 (982)
2000 (1093
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14.7 (101)
7.2 (50)
2.7 (19)
0.7 (5)
--
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21 (145)
10 (69)
4.1 (28)
1.3 (9)
--
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31 (214)
14 (97)
6.2 (43)
2.2 (15)
--
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44 (303)
19.5 (134)
9.2 (63)
3.7 (26)
0.9 (6)
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Average Creep Data, Sheet*
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Test
Temp.,
°F (°C)
|
Creep,
Percent
|
Average Initial Stress, Ksi (MPa)
to Produce Specified Creep in:
|
|
10 hrs.
|
100 hrs.
|
1,000 hrs.
|
10,000 hrs.
|
|
1200 (649)
|
0.5
1.0
2.0
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40 (276)
44 (303)
48 (331)
|
27 (186)
30 (207)
33 (227)
|
17.5 (121)
21 (145)
22.5 (155)
|
--
--
--
|
|
1400 (760)
|
0.5
1.0
2.0
|
16.5 (114)
19 (131)
21 (145)
|
10.5 (72)
13 (90)
15 (103)
|
6.5 (45)
9 (62)
10.8 (74)
|
--
6.2 (4.3)
7.6 (52)
|
|
1600 (871)
|
0.5
1.0
2.0
|
7.8 (54)
9 (62)
10.5 (72)
|
4.9 (34)
6.1 (42)
7.2 (50)
|
3.1 (21)
3.6 (25)
4.3 (30)
|
--
2.1** (14)
2.3 (16)
|
|
1800 (982)
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0.5
1.0
2.0
|
3.1 (21)
3.6 (25)
4.2 (29)
|
1.7 (12)
1.9 (13)
2.2 (15)
|
0.9 (6)
1.0 (7)
1.1 (8)
|
--
--
--
|
|
2000 (1093)
|
0.5
1.0
2.0
|
--
0.8 (6)
1.1 (8)
|
--
--
--
|
--
--
--
|
--
--
--
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Average Creep Data, Plate And Bar***
|
Test
Temp.,
°F (°C)
|
Creep,
Percent
|
Average Initial Stress, Ksi (MPa)
to Produce Specified Creep in:
|
|
10 hrs.
|
100 hrs.
|
1,000 hrs.
|
10,000 hrs.
|
|
1200 (649)
|
1.0
5.0
|
48 (331)
64 (441)
|
32 (220)
43 (296)
|
22 (151)
29 (200)
|
15 (103)
20** (138)
|
|
1350 (732)
|
1.0
5.0
|
27 (186)
34 (234)
|
19 (131)
24 (165)
|
13 (89)
16.5 (113)
|
9 (62)
11.5** (79)
|
|
1500 (816)
|
1.0
5.0
|
15 (103)
18 (124)
|
10.4 (71)
13 (89)
|
7.3 (50)
9 (62)
|
5.1 (35)
6.2** (43)
|
|
1650 (899)
|
1.0
5.0
|
8 (55)
10.5 (72)
|
5.4 (37)
6.8 (46)
|
3.7 (25)
4.2 (28)
|
2.5 (17)
2.8** (19)
|
|
1800 (982)
|
1.0
5.0
|
4.2 (28)
5.4 (37)
|
2.6 (17)
3.3 (22)
|
1.6 (11)
2.0 (14)
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1.0** (7)
--
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*Solution Heat-Treated. Based on over 100 tests.
**Extrapolated
***Solution Heat-Treated. Based on over 90 tests for 1.0 percent creep and on over 60 tests for 5.0 percent creep.
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