Carbide grade · Mitsubishi · ISO K20
Mitsubishi MH515
MH515 is a Mitsubishi carbide turning insert grade placed at the ISO K20 application position (cast iron) in manufacturer-published grade comparison charts. The charts list 4 comparable grades from 3 brands at the same position. Sharing an ISO position is a chart placement, not a claim the grades are interchangeable — verify on a sample part before switching.
Grade summary — Mitsubishi MH515
| Brand | Mitsubishi |
|---|---|
| ISO application position | K20 — cast iron |
| Coating / substrate | Not verified in the reference charts |
| Placement verification | Confirmed by 2+ manufacturer-published charts |
| Chart sources | Ingersoll turning grade cross-reference (live-fetched 2026-07-14), TaeguTec grade comparison table, Tungaloy grade comparison chart, Mitsubishi Materials grades comparison table, Reliable Industrial Supply chart |
Comparable grades at ISO K20 — per published comparison charts
| Brand | Grade | ISO position | Chart verification |
|---|---|---|---|
| Korloy | NC6215 | ISO K20 | confirmed by 2+ manufacturer charts |
| TaeguTec | TT7025 | ISO K20 | confirmed by 2+ manufacturer charts |
| Ceratizit | CTCK120 | ISO K20 | single chart |
| Korloy | NC315K | ISO K20 | single chart |
2 of the 4 placements are confirmed by two or more manufacturer charts. None of this is a metallurgical equivalence claim: chipbreaker geometry, coating and edge preparation differ between brands. The safe path is always a sample-part test.
Mitsubishi MH515 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.
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Frequently asked questions
What is Mitsubishi MH515?
MH515 is a Mitsubishi carbide turning insert grade. Manufacturer-published grade comparison charts place it at the ISO K20 application position (cast iron). Coating and substrate details are not verified in the reference charts.
Which grades are comparable to Mitsubishi MH515?
Published comparison charts list 4 grades from 3 brands at the same ISO position, including Korloy NC6215, TaeguTec TT7025. Sharing an ISO position is a chart placement, not a claim of interchangeability - verify on a sample part before switching.
Is a comparable grade a drop-in replacement for MH515?
No. The charts confirm the application position only. Chipbreaker geometry, coating and edge preparation differ between brands, so always test the alternative on a sample part and compare tool life before committing production.
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 MH515 is used: designations and materials