Summary
The two grades are used side by side in seawater and offshore piping, and both are magnetic, so neither a magnet nor appearance will separate them.
Buyers price them separately, so read for copper and tungsten on every piece. See super duplex 2507 scrap and S32760 scrap.
Side by Side
| Super duplex 2507 | Super duplex S32760 | |
|---|---|---|
| Chromium | About 25% | About 25% |
| Nickel | About 7% | About 7% |
| Molybdenum | About 4% | About 3.5% |
| Copper and tungsten | None | About 0.75% each |
| Forgings designation | F53 | F55 |
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 Super Duplex 2507 and S32760?
Both are super duplex stainless steels with about 25% chromium and 7% nickel. S32760 adds about 0.75% copper and 0.75% tungsten; 2507 (S32750) has neither and slightly more molybdenum.
Can Super duplex 2507 and Super duplex S32760 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.