X2CrNiMoN25-7-4 is the same material your supplier may list as UNS S32750. This page maps the designations across standards and gives the ISO M-group machining starting point, brand-neutral.
| System | Designation |
|---|---|
| EN (EU) | X2CrNiMoN25-7-4 |
| Werkstoffnummer | 1.4410 |
| AISI / ASTM / UNS (US) | UNS S32750 |
| JIS (Japan) | — |
Compiled from the public standard designation systems (EN 10027, SAE/AISI, ASTM, UNS, JIS). Entries marked “nearest” are the closest commonly-cited counterpart, not a drop-in equivalent. Always verify against the material certificate.
Everything 2205 does, harder. Reduce data another step, keep engagement constant, and plan tool life in minutes honestly rather than optimistically.
| ISO group | Starting Vc (coated carbide, turning) | Feed fn |
|---|---|---|
| M M · Stainless steel | 120–220 m/min · 395–720 sfm | 0.15–0.4 mm/rev · .006–.016 ipr |
Group-level starting range from our speeds & feeds guide; convert to RPM with the speeds & feeds calculator. Condition, subgroup and operation shift the number — the material page has the detail: ISO M · Super duplex stainless.
Related materials: Duplex 2205 / 1.4462
X2CrNiMoN25-7-4 (Werkstoffnummer 1.4410) corresponds to UNS S32750.
It is an ISO M-group material, so the starting window is 120–220 m/min · 395–720 sfm at 0.15–0.4 mm/rev · .006–.016 ipr for coated-carbide turning, adjusted for condition and operation. For a grounded, brand-neutral pick — grade, geometry and cutting data across 13 brands — ask the advisor.
They designate the same composition under different systems, but the drawing standard governs: certificates, tolerances and delivery-condition requirements differ between standards even for equivalent chemistry. Substitute only with the certificate in hand.
Knowing the material is half the job; picking the grade and cutting data for the operation is the other half. That is what the advisor does, grounded in catalog data and honest when there is no verified match.