Materials
for demanding applications
Hastelloy® Alloy X
Hastelloy® Alloy X is a nickel-chromium-iron-molybdenum alloy that offers excellent oxidation resistance and strength at elevated temperatures.
Chemical composition
| Composition | UNS N06002 % |
| Nickel | 47 balance |
| Chromium | 22.00 |
| Iron | 18 |
| Molybdenum | 9.00 |
| Cobalt | 1.5 |
| Tungsten | 0.6 |
| Manganese | 1 max |
| Silicon | 1 max |
| Boron | 0.008 max |
| Niobium | 0.50 max |
| Aluminum | 0.50 max |
| Titanium | 0.15 max |
Physical properties
| Metric | English | |
| Density | 8.22 g/cm³ | 0.297 lbs/in³ |
| Electrical resistivity | 17.87 µohms/cm | 45.4 µohms/in |
| Thermal conductivity | 9.2 W/m °C | 63 Btu-in/ft²hr-°F |
*thermal conductivity at 25° C [75° F], electrical resistivity 25° C [75° F]
Mechanical properties
| Cold worked % | Yield strength | Ultimate tensile strength | Elongation % |
| 0 | 427 MPa [62 ksi] | 827 MPa [120 ksi] | 38 |
| 20 | 1014 MPa [147 ksi] | 1165 MPa [169 ksi] | 5.8 |
| 37 | 1131 MPa [164 ksi] | 1303 MPa [189 ksi] | 3.9 |
| 50 | 1379 MPa [200 ksi] | 1558 MPa [226 ksi] | 3.1 |
| 60 | 1310 MPa [190 ksi] | 1627 MPa [236 ksi] | 2.4 |
All data represent results from a 25.4 cm [10 in] test gauge length. Values are typical and may not represent all diameters. Test method will affect results.