Hastelloy X is a nickel-chromium-iron-molybdenum superalloy with outstanding high temperature strength, oxidation resistance, and fabricability. Alloy X's oxidation resistance is excellent up to 2200° F. This nickel steel alloy has also been found to be exceptionally resistant to stress-corrosion cracking in petrochemical applications. Matrix stiffening provided by the molybdenum content results in high strength in a solid-solution alloy having good fabrication characteristics. Although this nickel alloy is primarily noted for heat and oxidation resistance it also has good resistance to chloride stress-corrosion cracking, carburization, and excellent resistance to reducing or carburizing atmospheres. Two common conditions that often lead to early failure in high temperature alloys, carburization and nitriding, Hastelloy X resists.
- Outstanding oxidation resistance through 2000° F
- Resistant to carburization and nitriding
- Excellent high temperature strength
- Good resistance to chloride stress-corrosion cracking
| Ni | Mo | Cr | Fe | W | Co | Mn | C |
|---|---|---|---|---|---|---|---|
| Remainder | 8.0-10.0 | 20.5-23.0 | 17.0-20.0 | .2-1.0 | .5-2.5 | 1.0 max | .05-.15 |
| P | S | Si | Al | Ti | B | Cu | |
| .04 max | .03 max | 1.0 max | .50 max | .15 max | .01 max | .50 max |
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