Summary
The two alloys share almost the same chemistry and both appear in oil and gas, which makes them easy to confuse. 925 is used where 825 is not strong enough, mostly as bar for downhole and valve components.
Read titanium on every piece. See Incoloy 825 scrap and Incoloy 925 scrap.
Side by Side
| Incoloy 825 | Incoloy 925 | |
|---|---|---|
| Nickel | About 42% | About 44% |
| Titanium | About 0.9% | About 2.1% |
| Strengthening | Solid solution | Precipitation hardened |
| Typical service | Acid plant, clad pipe, tubing | Downhole tools, valve stems, fasteners |
| Common scrap forms | Pipe, tube, plate | Bar ends, turnings, forgings |
Composition Compared
Nominal compositions 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 Incoloy 825 and Incoloy 925?
Incoloy 925 is the age-hardenable version of 825. Both carry about 42–44% nickel, 21% chromium, 3% molybdenum and 2% copper on an iron base, but 925 adds about 2.1% titanium.
Can Incoloy 825 and Incoloy 925 scrap be mixed?
No. Keep them separate. A melter buying either one needs its chemistry to stay within the grade’s limits, and mixing can mean a re-sort or a different valuation.