Carbide grade · Walter · ISO M/S
Walter WSM20S
WSM20S is a Walter carbide insert grade (Tiger·tec® Silver PVD), applied in the ISO M/S areas. In this cross-reference it appears on 1 insert designation; the same insert geometry is also made by ISCAR, Kennametal, Mitsubishi, Sandvik, Seco. 5 grades from other makers are confirmed at the same ISO position by two or more manufacturer charts. Same position is not the same performance: verify on a sample part before switching.
Verified cross-brand equivalents for Walter WSM20S, with the manufacturer charts behind each match: Walter WSM20S equivalents.
Grade summary
- Brand
- Walter
- Coating / substrate
- Tiger·tec® Silver PVD
- ISO application area
- M — stainless steel · S — superalloys & titanium
- Application range (catalog)
- M15–M25
- Used in
- 1 insert designation in this reference
Cross-brand equivalents (manufacturer charts)
| Brand | Grade | Shared ISO positions | Status |
|---|---|---|---|
| Seco | CP500 | M15 M20 S20 S25 | Confirmed (2+ charts) |
| TaeguTec | TT9080 | M20 S20 S25 | Confirmed (2+ charts) |
| Tungaloy | AH725 | M20 S20 S25 | Confirmed (2+ charts) |
| Kennametal | KCM25B | M15 M20 | Confirmed (2+ charts) |
| Tungaloy | AH630 | M20 S20 | Confirmed (2+ charts) |
| ISCAR | IC6025 | M20 | Lead (one chart or partial overlap), not a recommendation |
| Kennametal | KC525M | M20 | Lead (one chart or partial overlap), not a recommendation |
| Kyocera | CA6525 | M20 | Lead (one chart or partial overlap), not a recommendation |
| Kyocera | PR1225 | M20 | Lead (one chart or partial overlap), not a recommendation |
| Kyocera | PR1525 | M20 | Lead (one chart or partial overlap), not a recommendation |
The best-evidenced alternative to Walter WSM20S from another maker, with published cutting speeds (sourced, and compared only where both makers publish them for the same conditions), coating and what would decide a switch. Usually in your inbox within 30 minutes.
Walter WSM20S plus up to two grades you run next to it, worked through in one document: every cross-brand match with the number of manufacturer charts behind it, single-source candidates kept apart, where your grades overlap so the list can be shortened, and a validation plan. Emailed to you, usually within the hour. No account needed.
Same insert geometry, other brands
These makers produce the same insert designation in their own grade. Shared geometry is not a grade equivalence.
| Brand | Grade | Coating | Shared designations |
|---|---|---|---|
| ISCAR | IC6025 | SUMO TEC® CVD | SCMT09T308 |
| Kennametal | KCM25B | MT-CVD TiCN/Al₂O₃ | SCMT09T308 |
| Mitsubishi | MC7025 | CVD | SCMT09T308 |
| Sandvik | GC2220 | MT-CVD TiCN/Al₂O₃ | SCMT09T308 |
| Seco | TM2501 | Duratomic® CVD | SCMT09T308 |
Compare WSM20S side by side
Insert designations using WSM20S
| Designation | Geometry | Catalog code | Application |
|---|---|---|---|
| SCMT09T308 | 90° Square · 7° clearance (positive) · 0.8mm Rε | SCMT09T308 WSM20S | M15–M25 |
Frequently asked questions
What is Walter WSM20S?
WSM20S is a Walter carbide insert grade (Tiger·tec® Silver PVD), applied in the ISO M/S areas, used in 1 insert designation in this reference.
Which grades are comparable to WSM20S?
Grades from other makers confirmed at the same ISO application position by two or more manufacturer charts include Seco CP500, TaeguTec TT9080, Tungaloy AH725, Kennametal KCM25B, Tungaloy AH630. Same position is not the same performance: treat them as starting points and verify on a sample part before switching.
Does this cross-reference favour specific brands?
No. Comparable grades appear here only because manufacturer-published comparison charts place them at the same ISO application position. No manufacturer pays for placement, nothing on this page is sponsored, and CuttingToolsAI sells no tools and earns no commission. Placements backed by a single chart are flagged as such, and every comparison ends the same way: verify on a sample part before switching.
Grade charts by brand
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Related grades
Where WSM20S is used: designations and materials