Starting cutting speed in m/min and sfm, feed in mm/rev and ipr, the carbide grade class and the setup by operation for Super duplex 2507 (X2CrNiMoN25-7-4). The numbers are the published M10 Duplex stainless sub-group starting band; the designations are on the cross-reference page.
| Item | Value |
|---|---|
| ISO 513 group | M Stainless steel |
| Sub-group | M10 Duplex stainless |
| Sub-group hardness / condition | 240–300 HB |
| Category | Super duplex stainless |
| EN / Werkstoffnummer | X2CrNiMoN25-7-4 · 1.4410 |
Hardness is the range published for the whole M10 Duplex stainless sub-group on our material guide; the delivery condition of your Super duplex 2507 may sit anywhere inside it or outside it.
| Condition | Vc m/min | Vc sfm | Feed mm/rev | Feed ipr |
|---|---|---|---|---|
| M10 Duplex stainless, 240–300 HB | 80–150 | 260–490 | 0.10–0.30 | .004–.012 |
Sub-group starting values for carbide inserts, from M10 Duplex stainless. They describe the whole sub-group and are not tuned to Super duplex 2507. sfm and ipr are converted from the metric values (1 m/min = 3.281 sfm, 25.4 mm = 1 in). The published band is per sub-group, not per operation; the table below gives the setup by operation. Convert Vc to spindle speed with the speeds & feeds calculator, and see the speeds & feeds guide for the ISO M group range.
| Operation | Geometry | Coating family | Coolant | First check |
|---|---|---|---|---|
| Roughing | Positive but robust honed edge; rigid setup for high cutting forces | Tough PVD-coated carbide | High-pressure coolant 15–20 bar | Severe work-hardening: keep DOC above the hardened layer |
| Finishing | Positive, sharp but robust edge | PVD-coated carbide | High-pressure coolant 15–20 bar | Built-up edge at low speed: raise Vc into the duplex band |
| Interrupted cut | Robust honed edge | Tough PVD-coated carbide | High-pressure coolant 15–20 bar | Notch wear at the depth-of-cut line: vary DOC |
| Low rigidity / thin wall | Robust positive edge; shorten overhang, clamp rigidly | PVD-coated carbide | High-pressure coolant 15–20 bar | Deflection and chatter: duplex pushes back |
Setup rows are the selection table of the M10 Duplex stainless guide. They carry no speeds, so they do not change the starting band above.
Same sub-group, same starting band: Duplex 2205
Tough PVD-coated carbide, a robust M-class grade. Duplex (2205 / 2507) is stronger and work-hardens harder than austenitic 304 / 316, so favour edge security over a keen finishing edge.
The P, M, K, N, S or H number inside a grade range describes what the grade is built for, not the workpiece sub-group number, and the two scales must not be matched to each other. We name no single grade here: none of our published sources ties a named grade to this alloy. Pick by ISO class, then compare what the makers publish on the ISO M grade list and in the grade chart.
EN X2CrNiMoN25-7-4, Werkstoffnummer 1.4410, US UNS S32750. The full table, with the nearest-match flags, is on the Super duplex 2507 / 1.4410 cross-reference page.
Everything 2205 does, harder. Reduce data another step, keep engagement constant, and plan tool life in minutes honestly rather than optimistically.
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The published starting band for the M10 Duplex stainless sub-group is 80–150 m/min (260–490 sfm) at 0.10–0.30 mm/rev (.004–.012 ipr). It is a starting band for the whole sub-group, not a value tuned to Super duplex 2507, so confirm on a sample part and adjust for condition, tool and rigidity.
Tough PVD-coated carbide, a robust M-class grade. Duplex (2205 / 2507) is stronger and work-hardens harder than austenitic 304 / 316, so favour edge security over a keen finishing edge. Pick the grade by ISO class rather than by brand name, then confirm the exact grade for your condition. We name no single grade here because none of our published sources ties a named grade to this alloy.
EN X2CrNiMoN25-7-4 (Werkstoffnummer 1.4410); US: UNS S32750; JIS: none listed. Entries marked nearest are the closest commonly-cited counterpart, not a same-composition equivalent.
The advisor compares what the makers publish for your material and operation and shows the source behind each answer, or tells you it could not verify.