HASTELLOY® X alloy
Principal Features
Strong and Oxidation Resistance
HASTELLOY® X alloy (UNS N06002 (W86002) is a nickel-chromium-iron-molybdenum alloy that possesses an exceptional combination of oxidation resistance, fabricability and high-temperature strength. It has also been found to be exceptionally resistant to stress-corrosion cracking in petrochemical applications. X alloy exhibits good ductility after prolonged exposure at temperatures of 1200, 1400, 1600°F (650, 760 and 870°C) for 16,000 hours.
Ease of Fabrication
HASTELLOY® X alloy has excellent forming and welding characteristics. It may be forged or otherwise hot-worked, providing it is held at 2150°F (1177°C) for a time sufficient to bring the entire piece to temperature. As a consequence of its good ductility, HASTELLOY® X alloy is also readily formed by cold- working. All hot- or cold- worked parts should be annealed and rapidly cooled in order to restore the best balance of properties.
The alloy can be welded by a variety of techniques, including gas tungsten arc (GTAW), gas metal arc (GMAW), shielded metal arc (SMAW), and resistance welding.
Additional information regarding fabrication can be found here.
Heat Treatment
Wrought forms of HASTELLOY® X alloy are furnished in the solution heat-treated condition unless otherwise specified. X alloy is typically solution heat-treated at 2150°F (1177°C) and rapid cooled. Bright annealed products are cooled in hydrogen. Annealing at temperatures lower than the solution heat- treating may cause precipitation of secondary phases, which may affect the alloy’s strength and ductility.
Useful for Aircraft, Furnace and Chemical Process Components
X alloy has wide use in gas turbine engines for combustion zone components such as transition ducts, combustor cans, spray bars and flame holders as well as in afterburners, tailpipes and cabin heaters. It is recommended for use in industrial furnace applications because it has unusual resistant to oxidizing, reducing and neutral atmospheres. Furnace rolls of this alloy were still in good condition after operating for 8,700 hours at 2150°F (1177°C). HASTELLOY® X alloy is also used in the chemical process industry for retorts, muffles, catalyst support grids, furnace baffles, tubing for pyrolysis operations and flash drier components.
*Please contact our technical support team if you have technical questions about this alloy.
Nominal Composition
Weight % | |
Nickel | 47 Balance |
Chromium | 22.0 |
Iron | 18.0 |
Molybdenum | 9.0 |
Cobalt | 1.5 |
Tungsten | 0.6 |
Carbon | 0.1 |
Manganese | 1 max. |
Silicon | 1.0 max. |
Boron | 0.008 max. |
Niobium | 0.5 max. |
Aluminum | 0.5 max. |
Titanium | 0.15 max. |
Creep and Stress-Rupture Strengths
Minimum Creep Rate, HASTELLOY® X Sheet, Solution-Annealed
Test Temperature | Average Stress for Indicated Percent/Hour Minimum Creep Rate | ||||||||
0.0001 | 0.001 | 0.01 | 0.1 | ||||||
°F | °C | ksi | MPa | ksi | MPa | ksi | MPa | ksi | MPa |
1200 | 649 | 14.7 | 101 | 21.0 | 145 | 31.0 | 214 | 44.0 | 303 |
1400 | 760 | 7.2 | 50 | 10.0 | 69 | 14.0 | 97 | 19.5 | 134 |
1600 | 871 | 2.7 | 19 | 4.1 | 28 | 6.2 | 43 | 9.2 | 63 |
1800 | 982 | 0.7 | 5 | 1.3 | 9 | 2.2 | 15 | 3.7 | 26 |
2000 | 1093 | - | - | - | - | - | - | 0.9 | 6 |
HASTELLOY® X Plate, Solution-annealed
Temperature | Creep | Approximate Initial Stress to Produce Specified Creep in | ||||||||
10 h | 100 h | 1,000 h | 10,000 h | |||||||
°F | °C | % | ksi | MPa | ksi | MPa | ksi | MPa | ksi | MPa |
1200 | 649 | 0.5 | - | - | 27.2 | 188 | 19 | 128 | 12.8 | 88 |
1 | - | - | 30 | 207 | 21 | 145 | 15.5 | 107 | ||
R | 65* | 448* | 50 | 345 | 36 | 248 | 26 | 179 | ||
1300 | 704 | 0.5 | 25 | 172 | 16.2 | 112 | 11.1 | 77 | 8.2 | 57 |
1 | 27 | 186 | 19 | 131 | 14 | 97 | 10.5 | 72 | ||
R | 46 | 317 | 32 | 221 | 23 | 159 | 17 | 117 | ||
1400 | 760 | 0.5 | 15 | 103 | 10.3 | 71 | 7.5 | 52 | 5.6 | 39 |
1 | 18 | 124 | 13 | 90 | 9.5 | 66 | 7.1 | 49 | ||
R | 30 | 207 | 21 | 146 | 15.5 | 107 | 11.5 | 79 | ||
1500 | 816 | 0.5 | 9.9 | 68 | 7.2 | 50 | 5.3 | 37 | 3.85 | 27 |
1 | 12.5 | 86 | 9.1 | 63 | 6.7 | 46 | 4.7 | 32 | ||
R | 21 | 141 | 15 | 103 | 10.5 | 72 | 7.2 | 50 | ||
1600 | 871 | 0.5 | 7.0 | 48 | 5.1 | 35 | 3.7 | 26 | 2.4 | 17 |
1 | 8.9 | 61 | 6.4 | 44 | 4.5 | 31 | 2.9 | 20 | ||
R | 15 | 100 | 10.0 | 69 | 6.8 | 47 | 4.5 | 31 | ||
1700 | 927 | 0.5 | 5.1 | 35 | 3.6 | 25 | 2.3 | 16 | 1.3 | 9.0 |
1 | 6.4 | 44 | 4.4 | 30 | 2.7 | 19 | 1.5 | 10 | ||
R | 10.0 | 69 | 6.6 | 46 | 4.3 | 30 | 2.6 | 18 | ||
1800 | 982 | 0.5 | 3.6 | 25 | 2.3 | 16 | 1.25 | 8.6 | 0.55 | 3.8 |
1 | 4.4 | 30 | 2.7 | 19 | 1.45 | 10 | 0.65 | 4.5 | ||
R | 6.7 | 46 | 4.3 | 30 | 2.6 | 18 | 1.4 | 10 | ||
1900 | 1038 | 0.5 | 2.4 | 16 | 1.3 | 9.0 | 0.55 | 3.8 | - | - |
1 | 2.8 | 19 | 1.5 | 10 | 0.65 | 4.5 | - | - | ||
R | 4.3 | 30 | 2.6 | 18 | 1.4 | 10 | - | - | ||
2000 | 1093 | 0.5 | 1.4 | 10 | 0.60 | 4.1 | 0.15* | 1.0* | - | - |
1 | 1.6 | 11 | 0.70 | 4.8 | 0.20* | 1.4* | - | - | ||
R | 2.7 | 19 | 1.4 | 10 | 0.60* | 4.1* | - | - |
*Significant extrapolation
HASTELLOY® X Sheet, Solution-annealed
Temperature | Creep | Approximate Initial Stress to Produce Specified Creep in | ||||||||
10 h | 100 h | 1,000 h | 10,000 h | |||||||
°F | °C | % | ksi | MPa | ksi | MPa | ksi | MPa | ksi | MPa |
1200 | 649 | 0.5 | - | - | 26 | 178 | 18 | 124 | - | - |
1 | - | - | 28 | 193 | 21 | 145 | - | - | ||
R | 66* | 455* | 48 | 331 | 35 | 241 | 26 | 179 | ||
1300 | 704 | 0.5 | 23.5 | 162 | 16 | 112 | 12 | 83 | - | - |
1 | 26 | 179 | 19 | 131 | 14 | 97 | - | - | ||
R | 44 | 303 | 32 | 221 | 23 | 159 | 17 | 117 | ||
1400 | 760 | 0.5 | 15 | 103 | 11 | 76 | 8.1 | 56 | - | - |
1 | 18 | 124 | 13 | 90 | 9.5 | 66 | 7.1 | 49 | ||
R | 30 | 207 | 21 | 146 | 16 | 107 | 11.5 | 79 | ||
1500 | 816 | 0.5 | 10.5 | 72 | 7.7 | 53 | 5.4 | 37 | - | - |
1 | 12.5 | 86 | 9.1 | 63 | 6.5 | 45 | 4.3 | 30 | ||
R | 21 | 141 | 15 | 103 | 11 | 72 | 7.2 | 50 | ||
1600 | 871 | 0.5 | 7.5 | 52 | 5.1 | 35 | 3.2 | 22 | - | - |
1 | 8.9 | 61 | 6.2 | 43 | 3.9 | 27 | 2.3 | 16 | ||
R | 15 | 100 | 10 | 69 | 6.8 | 47 | 4.2 | 29 | ||
1700 | 927 | 0.5 | 5.1 | 35 | 3.1 | 21 | 1.5 | 11 | - | - |
1 | 6.2 | 43 | 3.8 | 26 | 2.2 | 15 | 1.1* | 7.2* | ||
R | 10 | 69 | 6.6 | 46 | 4.0 | 28 | 2.4 | 17 | ||
1800 | 982 | 0.5 | 3.1 | 21 | 1.5 | 11 | 0.48 | 3.3 | - | - |
1 | 3.8 | 26 | 2.2 | 15 | 1.0 | 6.9 | 0.33* | 2.3* | ||
R | 6.7 | 46 | 4.0 | 28 | 2.3 | 16 | 1.2 | 8.3 | ||
1900 | 1038 | 0.5 | 1.6 | 11 | - | - | - | - | - | - |
1 | 2.2 | 15 | 1.0 | 6.9 | 0.33* | 2.3* | - | - | ||
R | 4.1 | 28 | 2.4 | 17 | 1.2 | 8.3 | - | - | ||
2000 | 1093 | 0.5 | 0.62 | 4.3 | - | - | - | - | - | - |
1 | 1.1 | 7.6 | 0.35 | 2.4 | 0.10* | 0.69* | - | - | ||
R | 2.5 | 17 | 1.3 | 8.6 | 0.40 | 2.8 | - | - |
*Significant extrapolation
Tensile Properties
Tensile Data, Plate
Test Temperature | 0.2% Yield Strength | Ultimate Tensile Strength | Elongation | |||
°F | °C | ksi | MPa | ksi | MPa | % |
70 | 21 | 49.3 | 340 | 110.2 | 760 | 48.9 |
1000 | 538 | 32.5 | 224 | 87.6 | 604 | 60.2 |
1200 | 649 | 30.7 | 212 | 80.9 | 558 | 63.5 |
1400 | 760 | 31.6 | 218 | 61.0 | 421 | 74.5 |
1600 | 871 | 27.4 | 189 | 37.0 | 255 | 98.1 |
1800 | 982 | 13.6 | 94 | 20.0 | 138 | 98.1 |
2000 | 1093 | 6.5 | 45 | 10.4 | 72 | 95.3 |
Tensile Data, Sheet
Test Temperature | 0.2% Yield Strength | Ultimate Tensile Strength | Elongation | |||
°F | °C | ksi | MPa | ksi | MPa | % |
70 | 21 | 54.5 | 376 | 113.5 | 783 | 46.5 |
1000 | 538 | 36.7 | 253 | 91.0 | 628 | 53.6 |
1200 | 649 | 34.9 | 241 | 84.2 | 580 | 65.5 |
1400 | 760 | 33.8 | 233 | 61.6 | 424 | 95.6 |
1600 | 871 | 28.0 | 193 | 36.5 | 251 | 117.9 |
1800 | 982 | 12.8 | 88 | 18.9 | 130 | 81.5 |
2000 | 1093 | 6.2 | 43 | 9.5 | 65 | 50.6 |
Average Effect of Cryogenic Temperatures on Tensile Properties
Form | Condition | Test Temperature | 0.2% Yield Strength | Ultimate Tensile Strength | Elongation | |||
- | - | °F | °C | ksi | MPa | ksi | MPa | % |
Plate | Heat-treated at 2150°F(1177°C), Rapid Cooled | -311 | -196 | - | - | 150.2 | 1036 | 46 |
-108 | -78 | - | - | 118.8 | 819 | 51 | ||
72 | 22 | 47.0 | 324 | 104.5 | 721 | 46 |
All Weld Metal
Test Temperature | 0.2% Yield Strength | Ultimate Tensile Strength | Elongation | ||||
°F | °C | ksi | MPa | ksi | MPa | % | |
RT | RT | 66.4 | 458 | 98.6 | 680 | 28 | in 1 inch |
600 | 316 | 52.1 | 359 | 80.4 | 554 | 27 | in 1.125 inches |
1000 | 538 | 49.2 | 339 | 76.3 | 526 | 28 | in 1.125 inches |
1500 | 816 | 38.2 | 263 | 56.7 | 391 | 45 | in 1.125 inches |
RT= Room Temperature
Average Aged Tensile Data, Room Temperature*
Form | Aging Temperature | Aging Time | 0.2% Yield Strength | Ultimate Tensile Strength | Elongation | |||
- | °F | °C | h | ksi | MPa | ksi | MPa | % |
Sheet 0.125 in. (3.2mm) thick | SHT | SHT | - | 55.2 | 381 | 114.3 | 788 | 57 |
1200 | 649 | 1000 | 61.0 | 421 | 125.0 | 862 | 35 | |
4000 | 76.2 | 525 | 143.8 | 991 | 19 | |||
8000 | 78.6 | 542 | 147.9 | 1020 | 19 | |||
16000 | 78.1 | 538 | 148.0 | 1020 | 15 | |||
1400 | 760 | 1000 | 65.3 | 450 | 137.0 | 945 | 23 | |
4000 | 64.3 | 443 | 134.6 | 928 | 18 | |||
8000 | 61.3 | 423 | 131.0 | 903 | 19 | |||
16000 | 59.3 | 409 | 126.1 | 869 | 17 | |||
1600 | 871 | 1000 | 53.2 | 369 | 123.0 | 848 | 26 | |
4000 | 49.3 | 340 | 117.9 | 813 | 29 | |||
8000 | 48.2 | 332 | 115.0 | 793 | 30 | |||
16000 | 46.1 | 318 | 111.1 | 766 | 29 | |||
Plate 1/2 in. (12.7mm) thick | SHT | SHT | - | 49.5 | 341 | 109.9 | 758 | 47 |
1200 | 649 | 1000 | 56.5 | 390 | 121.4 | 837 | 33 | |
4000 | 73.4 | 506 | 142.5 | 983 | 18 | |||
8000 | 73.0 | 503 | 143.6 | 990 | 18 | |||
1400 | 760 | 1000 | 56.9 | 392 | 129.4 | 892 | 23 | |
4000 | 56.9 | 392 | 129.9 | 896 | 21 | |||
8000 | 56.3 | 388 | 129.2 | 891 | 20 | |||
1600 | 871 | 1000 | 47.6 | 328 | 119.0 | 820 | 31 | |
4000 | 44.9 | 310 | 116.7 | 805 | 28 | |||
8000 | 43.9 | 303 | 113.7 | 784 | 26 | |||
16000 | 42.7 | 394 | 109.0 | 752 | 26 |
*Test data for each form are from a single heat. SHT=Solution heat-treated (not aged).
Physical Properties
Physical Property | British Units | Metric Units | ||
Density | 72°F |
0.297 lb/in3 |
22°C |
8.22 g/cm3 |
Melting Range | 2300 - 2470 °F | 1260 - 1355°C | ||
Electrical Resistivity | 75°F | 45.21 µohm-in | 24°C | 114.83 µohm-cm |
100°F | 45.38 µohm-in | 38°C | 115.27 µohm-cm | |
200°F | 45.89 µohm-in | 94°C | 116.56 µohm-cm | |
300°F | 46.31 µohm-in | 149°C | 117.63 µohm-cm | |
400°F | 46.78 µohm-in | 205°C | 118.82 µohm-cm | |
500°F | 47.2 µohm-in | 260°C | 119.88 µohm-cm | |
600°F | 47.53 µohm-in | 316°C | 120.73 µohm-cm | |
700°F | 47.93 µohm-in | 371°C | 121.73 µohm-cm | |
800°F | 48.23 µohm-in | 427°C | 122.51 µohm-cm | |
900°F | 48.61 µohm-in | 483°C | 123.46 µohm-cm | |
1000°F | 49 µohm-in | 538°C | 124.46 µohm-cm | |
1100°F | 49.38 µohm-in | 594°C | 125.44 µohm-cm | |
1200°F | 49.53 µohm-in | 649°C | 125.81 µohm-cm | |
1300°F | 49.61 µohm-in | 705°C | 126.02 µohm-cm | |
1400°F | 49.68 µohm-in | 760°C | 126.2 µohm-cm | |
1500°F | 49.73 µohm-in | 816°C | 126.32 µohm-cm | |
1600°F | 49.8 µohm-in | 871°C | 126.5 µohm-cm | |
1700°F | 49.81 µohm-in | 927°C | 126.52 µohm-cm | |
1800°F | 49.67 µohm-in | 983°C | 126.17 µohm-cm | |
1900°F | 49.59 µohm-in | 1038°C | 125.96 µohm-cm | |
2000°F | 49.57 µohm-in | 1094°C | 125.9 µohm-cm | |
Thermal Conductivity | 70°F |
63 Btu-in/ft2-hr-°F |
25°C | 9.2 W/m-°C |
200°F |
76 Btu-in/ft2-hr-°F |
100°C | 11.2 W/m-°C | |
500°F |
98 Btu-in/ft2-hr-°F |
200°C | 14.1 W/m-°C | |
1100°F |
144 Btu-in/ft2-hr-°F |
600°C | 20.9 W/m-°C | |
1200°F |
151 Btu-in/ft2-hr-°F |
650°C | 21.9 W/m-°C | |
1300°F |
159 Btu-in/ft2-hr-°F |
700°C | 22.8 W/m-°C | |
1400°F |
166 Btu-in/ft2-hr-°F |
750°C | 23.8 W/m-°C | |
1500°F |
174 Btu-in/ft2-hr-°F |
800°C | 24.7 W/m-°C | |
1600°F |
182 Btu-in/ft2-hr-°F |
850°C | 25.7 W/m-°C | |
1700°F |
189 Btu-in/ft2-hr-°F |
900°C | 26.7 W/m-°C | |
Specific Heat | RT | 0.116 Btu/lb.-°F | RT | 486 J/kg-°C |
200°F | 0.117 Btu/lb.-°F | 100°C | 487 J/kg-°C | |
400 °F | 0.118 Btu/lb.-°F | 200°C | 484 J/kg-°C | |
600°F | 0.119 Btu/lb.-°F | 300°C | 491 J/kg-°C | |
800°F | 0.123 Btu/lb.-°F | 400°C | 507 J/kg-°C | |
1000°F | 0.130 Btu/lb.-°F | 500°C | 531 J/kg-°C | |
1200°F | 0.139 Btu/lb.-°F | 600°C | 564 J/kg-°C | |
1400°F | 0.151 Btu/lb.-°F | 700°C | 606 J/kg-°C | |
1600°F | 0.167 Btu/lb.-°F | 800°C | 657 J/kg-°C | |
1800°F | 0.186 Btu/lb.-°F | 900°C | 716 J/kg-°C | |
2000°F | 0.205 Btu/lb.-°F | 1000°C | 784 J/kg-°C | |
Mean Coefficient of Thermal Expansion | 79 - 200°F | 7.7 µin/in.-°F | 26 - 100°C |
13.9 10-6m/m-°C |
79 - 1000°F | 8.4 µin/in.-°F | 26 - 500°C |
15.0 10-6m/m-°C |
|
79 - 1200°F | 8.6 µin/in.-°F | 26 - 600°C |
15.3 10-6m/m-°C |
|
79 - 1350°F | 8.8 µin/in.-°F | 26 - 700°C |
15.7 10-6m/m-°C |
|
79 - 1400°F | 8.9 µin/in.-°F | 26 - 750°C |
15.9 10-6m/m-°C |
|
79 - 1500°F | 8.9 µin/in.-°F | 26 - 800°C |
16.0 10-6m/m-°C |
|
79 - 1600°F | 9.1 µin/in.-°F | 26 - 850°C |
16.2 10-6m/m-°C |
|
79 - 1650°F | 9.1 µin/in.-°F | 26 - 900°C |
16.4 10-6m/m-°C |
|
79 - 1800°F | 9.2 µin/in.-°F | 26 - 975°C |
16.6 10-6m/m-°C |
|
Dynamic Modulus of Elasticity | RT |
29.8 x 106 psi |
RT | 205 GPa |
200°F |
29.4 x 106 psi |
100°C | 202 GPa | |
400°F |
28.6 x 106 psi |
200°C | 198 GPa | |
600°F |
27.8 x 106 psi |
300°C | 192 GPa | |
800°F |
26.7 x 106 psi |
400°C | 187 GPa | |
1000°F |
25.8 x 106 psi |
500°C | 180 GPa | |
1200°F |
24.7 x 106 psi |
600°C | 173 GPa | |
1400°F |
23.3 x 106 psi |
700°C | 165 GPa | |
1600°F |
22.2 x 106 psi |
800°C | 157 GPa | |
1800°F |
20.4 x 106 psi |
900°C | 148 GPa | |
Poisson's Ratio | -108°F | 0.328 | -78 °C | 0.328 |
72°F | 0.32 | 22 °C | 0.32 | |
Magnetic Permeability | RT | 1.002 at 200 oersteds (15,900 A/m) |
*RT = Room Temperature
Hardness and Grain Size
Room Temperature Hardness of Material Solution Annealed at 2150°F
Form | Hardness, HRBW | Typical ASTM Grain Size | ||
Sheet | 86 | 3-5 | ||
Plate | 87 | 3.5-6 | ||
Bar | 88 | 2-5 |
HRBW = Hardness Rockwell “B”, Tungsten Indentor.
Aged Hardness
Aged Hardness at Room Temperature*
Form | Aging Temperature | Aging Time | HRBW | |
- | °F | °C | h | - |
Sheet | SHT | SHT | - | 54 |
1200 | 649 | 1000 | 56 | |
4000 | 62 | |||
8000 | 63 | |||
1400 | 760 | 1000 | 62 | |
4000 | 61 | |||
8000 | 60 | |||
1600 | 871 | 000 | 61 | |
4000 | 58 | |||
8000 | 55 | |||
Plate | SHT | SHT | - | 54 |
1200 | 649 | 1000 | 57 | |
4000 | 62 | |||
8000 | 63 | |||
1400 | 760 | 1000 | 60 | |
4000 | 59 | |||
8000 | 58 | |||
1600 | 871 | 1000 | 56 | |
4000 | 56 | |||
8000 | 54 | |||
All Weld Metal** | 1200 | 649 | 1000 | 64 |
4000 | 65 | |||
8000 | 63 | |||
1400 | 760 | 1000 | 62 | |
4000 | 60 | |||
8000 | 60 | |||
1600 | 871 | 1000 | 56 | |
4000 | 55 | |||
8000 | 54 |
SHT=Solution heat-treated (not aged)
*Single tests from a single heat for each form
**Gas tungsten arc welded
HRBW = Hardness Rockwell “B”, Tungsten Indentor.
Formability
Sheet
HASTELLOY® X alloy Formability
Condition | Typical Olsen cup Depth | |
– | in. | mm |
Heat-treated at 2150°F(1177°C), Rapid Cooled | 0.48 | 12.3 |
Impact Strength
Average Impact Strength, Plate*
Condition | Test Temperature | Average Charpy V-Notch Impact Strength | |
ft. - lb. | J | ||
Heat-treated at 2100°F (1149°C),Water Quenched | RT | 103 | 140 |
*Average of 28 samples from multiple heats, 0.413″ – 1.25″ thick, tested during years 2007 – 2014.
Aged Plate*
Aging Temperature | Aging Time | Average Charpy V-Notch Impact Strength | ||
°F | °C | h | ft.-lb. | J |
SHT | SHT | - | 95 | 129 |
1200 | 649 | 1000 | 24 | 33 |
4000 | 12 | 16 | ||
8000 | 15 | 20 | ||
1400 | 760 | 1000 | 10 | 14 |
4000 | 10 | 14 | ||
8000 | 8 | 11 | ||
1600 | 871 | 1000 | 15 | 20 |
4000 | 12 | 16 | ||
8000 | 15 | 20 | ||
16000 | 12 | 16 |
SHT=Solution heat-treated (not aged) * Average of four tests on 1/2-in. (12.7mm) plate from a single heat.
Oxidation Resistance
Comparative Static Oxidation Data in Flowing Air for 1008 Hours*
Alloy | 1800°F (980°C) | 2000°F (1095°C) | ||||||
Metal Loss/Side | Metal Loss + CIP**/Side | Metal Loss/Side | Metal Loss + CIP**/Side | |||||
- | mils | mm | mils | mm | mils | mm | mils | mm |
X | 0.29 | 0.007 | 0.74 | 0.019 | 1.5 | 0.038 | 2.7 | 0.069 |
INCONEL® 600 | 0.32 | 0.008 | 0.90 | 0.023 | 1.1 | 0.028 | 1.6 | 0.041 |
INCONEL® 601 | 0.53 | 0.013 | 1.3 | 0.033 | 1.2 | 0.031 | 2.6 | 0.06 |
625 | 0.32 | 0.008 | 0.72 | 0.018 | 3.3 | 0.083 | 4.8 | 0.12 |
800H® | 0.024 | 0.024 | 1.8 | 0.046 | 5.4 | 0.137 | 7.4 | 0.19 |
*Cycled to room temperature once a week **CIP=Continuous Internal Penetration
INCONEL is a trademark of Inco Family of Companies
Schematic Representation of Metallographic Technique used for
Elevating Oxidation Tests
Comparative Average Hot Corrosion Resistance*
Test Temperature | Test Period | Total Metal Affected/Side | ||||||
X | 188 | S | ||||||
°F | °C | h | mils | mm | mils | mm | mils | mm |
1650 | 900 | 200 | 3.0 | 0.08 | 2.7 | 0.07 | 2.1 | 0.05 |
1650 | 900 | 1000 | 6.8 | 0.17 | 7.5 | 0.19 | 3.7 | 0.09 |
*All tests performed by exposure to the combustion products of No. 2 fuel oil (0.4 percent sulfur) and 5 ppm of sea salt. Gas velocity over samples was 13 ft./sec. (4m/s). Thermal shock frequency was one/hour.
Carburization Resistance
Tests were performed in a carburizing environment with an inlet gas mixture (volume %) of 5.0% H2, 5.0% CO, 5.0% CH4 and the balance argon. The calculated oxygen potential and carbon activity at 1800°F (980°C) were 9 x 10-22 atm. and 1.0, respectively.
The results are presented in terms of the mass of carbon pickup per unit area, which was obtained from the equation M = C (W/A) where M = the mass of carbon pickup per unit area (mg/cm2), C = difference in carbon (weight fraction) before and after exposure, W = weight of the unexposed specimen (mg) and A = surface area of the specimen exposed to the test environment (cm2).
Comparative Carburization Resistance at 1800°F (980°C) for 55 Hours
Welding
HASTELLOY® X alloy is readily welded by Gas Tungsten Arc Welding (GTAW), Gas Metal Arc Welding (GMAW), Shielded Metal Arc Welding (SMAW), and resistance welding techniques. Submerged Arc Welding (SAW) is not recommended as this process is characterized by high heat input to the base metal and slow cooling of the weld. These factors can increase weld restraint and promote cracking.
Base Metal Preparation
The welding surface and adjacent regions should be thoroughly cleaned with an appropriate solvent prior to any welding operation. All greases, oils, cutting oils, crayon marks, machining solutions, corrosion products, paint, scale, dye penetrant solutions, and other foreign matter should be completely removed. It is preferable, but not necessary, that the alloy be in the solution- annealed condition when welded.
Filler Metal Selection
HASTELLOY® X filler wire (AWS A5.14, ERNiCrMo-2) is recommended for joining X alloy by Gas Tungsten Arc or Gas Metal Arc welding. Coated electrodes of X alloy are also available for Shielded Metal Arc welding in non-ASME code construction. For dissimilar metal joining of X alloy to nickel-, cobalt-, or iron- base materials, X filler wire, HAYNES® 556® alloy (AWS A5.9 ER3556, AMS 5831) , HASTELLOY® S alloy (AMS 5838) or HASTELLOY® W alloy (AMS 5786, 5787) welding products may all be considered, depending upon the particular case. Please click here or the Haynes Welding SmartGuide for more information.
Preheating, Interpass Temperatures, and Post- Weld Heat Treatment
Preheat is not required. Preheat is generally specified as room temperature (typical shop conditions). Interpass temperature should be maintained below 200°F (93°C). Auxiliary cooling methods may be used between weld passes, as needed, providing that such methods do not introduce contaminants. Post-weld heat treatment is not generally required for X alloy. For further information, please click here.
Nominal Welding Parameters
Details for GTAW, GMAW and SMAW welding are given here. Nominal welding parameters are provided as a guide for performing typical operations and are based upon welding conditions used in our laboratories.
Mechanical Properties of Welded Material
Room Temperature Hardness of Welded Sheet
Weld Method | Test Area | HRBW |
Shielded Metal Arc (covered electrodes) | Weld Area | 92 |
Heat-Affected Zone | 93 | |
Base Metal | 91 | |
Gas Tungsten Arc (TIG) | Weld Area | 89 |
Heat-Affected Zone | 93 | |
Base Metal | 91 | |
Gas Metal Arc (MIG) | Weld Area | 90 |
Heat-Affected Zone | 93 | |
Base Metal | 91 |
Note: Sheet was solution heat-treated prior to welding. Hardness was determined at room temperature in the as-welded condition.
HRBW = Hardness Rockwell “B”, Tungsten Indentor.
Average Short-term Tensile Data, Cold-reduced and Welded 0.109 in. (2.8mm) Sheet
Condition | Form | 0.2% Yield Strength | Ultimate Tensile Strength | ||
- | - | ksi | MPa | ksi | MPa |
As Cold-reduced | Reduced 5% | 82.0 | 565 | 123.0 | 848 |
Reduced 15% | 106.0 | 731 | 137.0 | 945 | |
Reduced 30% | 137.0 | 945 | 161.0 | 1110 | |
Cold-reduced and Welded, As Welded | Reduced 5% | 68.0 | 469 | 114.9 | 792 |
Reduced 15% | 72.1 | 497 | 113.1 | 780 | |
Reduced 30% | 69.9 | 482 | 112.9 | 778 |
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 Tensile Data, Weldments
Condition | Weld Method | Material | 0.2% Yield Strength | Ultimate Tensile Strength | Elongation | ||
- | - | - | ksi | MPa | ksi | MPa | % |
As-Welded | Shielded Metal Arc(covered electrodes) | Sheet, 0.125 in. (3.2mm) | 55.2 | 381 | 110.2 | 760 | 26 |
Plate, 0.250 in. (6.4mm) | 56.7 | 391 | 109.8 | 757 | 26 | ||
Plate, 0.375 in. (9.5mm) | 55.4 | 382 | 110.2 | 760 | 26 | ||
As-Welded | Gas Tungsten Arc (TIG) | Sheet, 0.125 in. (3.2mm) | 59.1 | 407 | 110.2 | 759 | 26 |
Plate, 0.250 in. (6.4mm) | 53.1 | 365 | 107.1 | 738 | 25 | ||
Plate, 0.375 in. (9.5mm) | 54.9 | 379 | 107.6 | 742 | 22 | ||
As-Welded | Gas Metal Arc(MIG) | Sheet, 0.125 in. (3.2mm) | 53.1 | 366 | 103.7 | 715 | 22 |
Plate, 0.250 in. (6.4mm) | 55.0 | 379 | 110.8 | 764 | 33 | ||
Plate, 0.375 in. (9.5mm) | 57.0 | 393 | 106.4 | 734 | 24 |
All Weld Metal
Test Temperature | 0.2% Yield Strength | Ultimate Tensile Strength | Elongation | ||||
°F | °C | ksi | MPa | ksi | MPa | % | |
RT | RT | 66.4 | 458 | 98.6 | 680 | 28 | in 1 inch |
600 | 316 | 52.1 | 359 | 80.4 | 554 | 27 | in 1.125 inches |
1000 | 538 | 49.2 | 339 | 76.3 | 526 | 28 | in 1.125 inches |
1500 | 816 | 38.2 | 263 | 56.7 | 391 | 45 | in 1.125 inches |
RT= Room Temperature
Average Welded and Aged Tensile Data, Room Temperature*
Form | Aging Temperature | Aging Time | 0.2% Yield Strength | Ultimate Tensile Strength | Elongation | |||
- | °F | °C | h | ksi | MPa | ksi | MPa | % |
Plate 1/2 in (12.7mm) thick | 1600 | 871 | 8000 | 47.9 | 330 | 109.0 | 752 | 22 |
Gas Tungsten Arc Welded Plate, 1/2 in. (12.7mm) thick | 1200 | 649 | 1000 | 66.0 | 455 | 126.9 | 875 | 33 |
4000 | 86.5 | 596 | 150.1 | 1035 | 19 | |||
8000 | 82.9 | 572 | 145.5 | 1003 | 18 | |||
1400 | 760 | 1000 | 58.2 | 401 | 128.2 | 884 | 19 | |
4000 | 62.3 | 430 | 127.4 | 878 | 18 | |||
8000 | 62.3 | 430 | 125.2 | 863 | 15 | |||
1600 | 871 | 4000 | 49.7 | 343 | 105.3 | 726 | 15 | |
8000 | 46.9 | 323 | 98.0 | 676 | 16 | |||
All Weld Metal** | 1200 | 649 | 1000 | 87.5 | 603 | 123.0 | 848 | 8 |
4000 | 86.0 | 593 | 139.3 | 960 | 8 | |||
8000 | 86.8 | 598 | 131.8 | 909 | 9 | |||
1400 | 760 | 1000 | 62.7 | 432 | 113.5 | 783 | 12 | |
4000 | 60.6 | 418 | 110.5 | 762 | 6 | |||
8000 | 59.8 | 412 | 97.7 | 674 | 7 | |||
1600 | 871 | 1000 | 48.3 | 330 | 92.8 | 640 | 9 | |
8000 | 46.3 | 319 | 92.7 | 639 | 11 |
*Test data for each form are from a single heat.
**Single test data.
Gas tungsten arc welded.
Specifications and Codes
Specifications
HASTELLOY® X alloy (N06002, W86002) | |
Sheet, Plate & Strip | AMS 5536SB 435/B 435P= 43 |
Billet, Rod & Bar | AMS 5754SB 572/B 572B 472P= 43 |
Coated Electrodes | SFA 5.11/ A 5.11(ENiCrMo-2)F= 43 |
Bare Welding Rods & Wire | SFA 5.14/ A 5.14(ERNiCrMo-2)AMS 5798F=43 |
Seamless Pipe & Tube | SB 622/B 622P= 43 |
Welded Pipe & Tube | AMS 5588SB 619/B 619SB 626/B 626P= 43 |
Fittings | SB 366/B 366P= 43 |
Forgings | AMS 5754 |
DIN | 17742 No. 2.4665NiCr22Fe18Mo |
Others | NACE MR0175ISO 15156 |
Codes
HASTELLOY® X alloy (N06002, W86002) | |||
ASME | Section l | - | |
Section lll | Class 1 |
800°F (427°C)1 |
|
Class 2 |
800°F (427°C)5 |
||
Class 3 |
800°F (427°C)5 |
||
Classes TC and SC |
800ºF (427ºC)2 |
||
Section lV | HF-300.2 | - | |
Section Vlll | Div. 1 |
1650°F (899°C)2 |
|
Div. 2 |
900ºF (482ºC)61650°F (899°C)5800°F (427°C)(Bolting) |
||
Section Xll |
650°F (343°C)2 |
||
B16.5 |
1500°F (816°C)3 |
||
B16.34 |
1500°F (816°C)4 |
||
B31.1 | - | ||
B31.3 |
1500°F (816°C)5 |
||
MMPDS | 6.3.1 |
1Plate, Sheet, Bar, welded pipe/tube, seamless pipe/tube
2Plate, Sheet, Bar, fittings, welded pipe/tube, seamless pipe/tube, Bolting
3Plate, Bar
4Plate, Bar, seamless pipe/tube
5Welded pipe/tube, seamless pipe/tube
6Plate, Sheet, and Rod
Disclaimer
Haynes International makes all reasonable efforts to ensure the accuracy and correctness of the data displayed on this site but makes no representations or warranties as to the data’s accuracy, correctness or reliability. All data are for general information only and not for providing design advice. Alloy properties disclosed here are based on work conducted principally by Haynes International, Inc. and occasionally supplemented by information from the open literature and, as such, are indicative only of the results of such tests and should not be considered guaranteed maximums or minimums. It is the responsibility of the user to test specific alloys under actual service conditions to determine their suitability for a particular purpose.
For specific concentrations of elements present in a particular product and a discussion of the potential health affects thereof, refer to the Safety Data Sheets supplied by Haynes International, Inc. All trademarks are owned by Haynes International, Inc., unless otherwise indicated.
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