Summary
Both are trademarked families of nickel alloys, from different producers. For scrap, the practical difference is molybdenum: most Hastelloy corrosion grades carry much more of it, which raises their value. Inconel 625 against Hastelloy C-276 is the most common confusion; the composition table below shows the difference.
Side by Side
| Inconel | Hastelloy | |
|---|---|---|
| Main alloying | Chromium (15–29%); some Mo, Nb, Co | Molybdenum (9–28%) with chromium and tungsten |
| Strength | Include high-strength aged grades (718) | Mainly solid-solution corrosion grades |
| Typical scrap | Pipe, plate, turnings, forgings | Plate, tube, sheet linings |
| Value driver | Nickel plus Mo, Nb, Co | Nickel plus high molybdenum and tungsten |
Composition: Inconel 625 vs Hastelloy C-276
Representative grades compared element by element. Change either grade to compare others.
On the XRF
Switch the grade to see how the fingerprint changes. See how XRF sorts nickel alloys.
FAQ
What is the main difference between Inconel and Hastelloy?
Inconel alloys are mostly nickel-chromium, built for oxidation resistance and strength at temperature. Hastelloy corrosion alloys are nickel-molybdenum or nickel-chromium-molybdenum, built for the harshest acids and chlorides.