High Temp Metals 800-500-2141

HASTELLOY X TECHNICAL DATA


Type Analysis | Application | Oxidation Resistance | Workability | Physical Properties

Type Analysis

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

Application

Hastelloy X is recommended especially for use in furnace applications because it has unusual resistance to oxidizing, reducing, and neutral atmospheres. Furnace rolls made of this alloy were still in good condition after operating for 8,700 hours at 2150 °F (1177°C).
Alloy X also has performed well in jet engine tailpipes, afterburner components, cabin heaters, and other aircraft parts.


Oxidation Resistance

Hastelloy X is a nickel base alloy that possesses exceptional strength and oxidation resistance up to 2200°F. It has also been found to be exceptionally resistant to stress-corrosion cracking in petrochemical applications. The alloy has excellent forming and welding characteristics.


Workability

Hastelloy X can be forged and, because of its good ductility, can be cold-worked. It can be welded by both manual and automatic welding methods including shielded metal-arc (coated electrodes), gas tungsten-arc (TIG), and gas metal-arc (MIG). Alloy X can also be resistance-welded.

Machineability

Low cutting speeds, rigid tools and work piece, heavy equipment, ample coolant and positive feeds are general recommendations.

High-Speed Cutting Tools for Lathe Turning Operations

Angle

Roughing

Finishing

Back rake
Positive side rake
End clearance
End cutting edge
Side cutting edge





--


14-18°

25°
Up to 45°

Cutting Speeds for High-Speed Steels

Operation

Speed

Feed

sfpm

m/s

ipr

mm/rev

Turning
Drilling (.500"/12.70mm)
Tapping
Milling
Reaming

12-20
10-12
5-10
10-20
8-10

0.06/.010
0.05/0.06
0.03/0.05
0.05/0.10
0.04/0.05

0.010
0.006/0.010
--
--
--

0.25
0.15/0.25
--
--
--

Carbide tools should have smaller angles than high-speed tools and operating speeds can be higher. A sulfur-based cutting fluid is recommended. Thoroughly clean work piece after machining to prevent surfance contamination during subsequent heat treating. Chlorine additives would be an alternative.


Average Physical Properties

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

Average Dynamic Oxidation Resistance*

Test
Temp.,
°F (°C)

Test
Period,
hrs.

Metal Loss/Side,
mils (mm)

Maximum
Penetration/side,
mils (mm)

Total Metal
Affected side,
mils (mm)

1600 (871)
1600 (871)
1800 (982)
1800 (982)
1900 (1038)
2000 (1093)
2100 (1149)

100
1000
100
1000
100
100
100

0.3 (0.01)
1.2 (0.03)
0.9 (0.02)
1.7 (0.04)
0.9 (0.02)
1.4 (0.04)
1.9 (0.05)

0.5 (0.01)
3.2 (0.08)
1.1 (0.03)
4.1 (0.10)
1.7 (0.04)
2.3 (0.04)
2.4 (0.06)

0.8 (0.02)
4.5 (0.11)
2.0 (0.05)
5.8 (0.15)
2.5 (0.06)
3.7 (0.09)
4.4 (0.11)

*Samples exposed to the combustion products of No. 2 diesel oil (0.4 percent sulfur).
Hot gas velocity was 280 ft./sec. (85m/s). Thermal shock frequency is 2 cycles per
hour, consisting of cooling from test temperature to <500°F (<260°C) and back to
test temperature in two minutes.

Average Hardness, Room Temperature

Form

Condition

Average Hardness,
Rockwell B

Sheet,
0.012 to 0.090"
thick

Heat treated at
2150°F(1177°C)
Rapid Cooled

87

Sheet,
0.091 to 0.312"
thick

Heat treated at
2150°F(1177°C)
Rapid Cooled

92

Plate,
3/8 to 2.00"
thick

Heat treated at
2150°F(1177°C)
Rapid Cooled

89

Aged hardness, Room Temperature*

Form

Aging Temp.,
°F (°C)

Aging Time, hrs.

Hardness,
Rockwell A

Sheet

Solution Heat-Treated (Not aged)

--

54

1200 (649)

1000
4000
8000

54
56
62

1400 (760)

1000
4000
8000

63
62
61

1600 (871)

1000
4000
8000

61
58
55

Plate

Solution Heat-Treated (Not aged)

--

54

1200 (649)

1000
4000
8000

57
62
63

1400 (760)

1000
4000
8000

60
59
58

1600 (871)

1000
4000
8000

56
56
54

*Single tests from a single heat for each form.

Average Dynamic Modulus of Elasticity

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)

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)

Average Impact Strength, Plate

Form

Condition

Test Temp.,
°F (°C)

Average Charpy V-Notch
Impact Strength

ft. lb.

J

Plate

Heat-treated at
2150°F (1177°C),
Rapid Cooled

-321 (-196)
-216 (-157)
-108 (-78)
-20 (-29)
Room
1500 (815)

37
44
51
56
54
58

50
60
69
76
73
79

Average Room Temperature 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)

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

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)

55.2 (381)

57

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)

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)

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)

56.9 (390)
56.9 (390)
56.3 (388)

23
21
20

1600 (871)

1000
4000
8000
16000

119.0 (820)
116.7 (805)
113.7 (784)
109.0 (752)

47.6 (328)
44.9 (310)
43.9 (303)
42.7 (294)

31
28
26
26

Average Rupture Data, Sheet*

Test
Temp.,
°F (°C)

Average Rupture Life Strength
for Time Indicated, ksi (MPa)

10 hrs

100 hrs

1000 hrs

10000 hrs

1200 (649)
1400 (760)
1600 (871)
1800 (982)
2000 (1093)

67 (462)
32 (221)
17 (117)
6.5 (45)
2.4 (17)

48 (331)
22.5 (155)
10.6 (73)
3.7 (26)
1.2 (8)

34 (234)
15.8 (109)
6.5 (45)
2.1 (14)
0.6 (4)

24.6 (170)
11.1 (77)
4.0 (28)
1.2 (8)
----

Average Rupture Data, Plate and Bar*

Test
Temp.,
°F (°C)

Average Rupture Life Strength
for Time Indicated, ksi (MPa)

10 hrs

100 hrs

1000 hrs

10000 hrs

1200 (649)
1350 (732)
1500 (816)
1650 (899)
1800 (982)
1950 (1066)
2100 (1149)

72 (496)
36 (248)
21 (145)
12 (83)
7.0 (48)
3.7 (26)
1.7 (12)

47.9 (330)
25 (172)
14 (96)
7.5 (52)
4.2 (29)
1.9 (13)
0.7 (5)

34 (234)
18 (124)
10 (69)
4.7 (32)
2.4 (17)
1.0** (7)
0.3** (2)

24 (165)
12.5 (86)
6.8 (47)
3.0 (21)
1.4 (10)
----
----

*Solution Heat Treated. Based on over 100 tests for sheet and over 150 tests for plate.
**Extrapolated

Minimum Creep Rate Data, Sheet*

Test
Temp.,
°F (°C)

Average Stress for Indicated
Percent/Hour Minimum Creep Rate, Ksi (MPa)

0.0001

0.001

0.01

0.1

1200 (649)
1400 (760)
1600 (871)
1800 (982)
2000 (1093

14.7 (101)
7.2 (50)
2.7 (19)
0.7 (5)
--

21 (145)
10 (69)
4.1 (28)
1.3 (9)
--

31 (214)
14 (97)
6.2 (43)
2.2 (15)
--

44 (303)
19.5 (134)
9.2 (63)
3.7 (26)
0.9 (6)

Average Creep Data, Sheet*

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

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)

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)

--
--
--

--
--
--

--
--
--

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)

1.0** (7)
--

*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.

Hastelloy X - Current Inventory Stock