INCONEL® 625 is a nonmagnetic, corrosion and oxidation resistant, nickel-base alloy. It has high strength and toughness in the temperature range cryogenic to 2000°F (1093°C) which is derived largely from the solid solution effects of the refractory metals, columbium and molybdenum, in a nickel-chromium matrix. Alloy 625 has excellent fatigue strength and stress-corrosion cracking resistance to chloride ions.
Typical applications for INCONEL® 625 have included heat shields, furnace hardware, gas turbine engine ducting, combustion liners and spray bars, chemical plant hardware and special seawater applications.
Available forms are seamless pipe, welded pipe, seamless tube, welded tube, bar, wire, sheet, plate, forgings, pipe fittings and flanges.
Chemical Composition %
| Elements | INCONEL® 625 UNS N06625 |
| Nickel | 58 min. |
| Chromium | 20.0-23.0 |
| Iron | 5.0 max. |
| Molybdenum | 8.0-10.0 |
| Niobium(plus Tantalum) | 3.15-4.15 |
| Carbon | 0.10 max. |
| Manganese | 0.50 max. |
| Silicon | 0.50 max. |
| Phosphorus | 0.015 max. |
| Sulfur | 0.015 max. |
| Aluminum | 0.40 max. |
| Titanium | 0.40 max. |
| Cobalta | 1.0 max. |
| a If determined |