Kyocera KBN010 KBN020 Coated CBN Inserts
Engineered by Kyocera Corporation, the Kyocera KBN010 KBN020 coated CBN inserts combine high wear resistance and fracture resistance to significantly lower production costs when machining hardened materials. Featuring high-toughness CBN substrates paired with newly developed MEGACOAT TOUGH coating technology, these inserts support a wide range of turning applications from continuous finishing to heavy interrupted cuts on hardened steel.
Advanced Substrates and MEGACOAT TOUGH Technology in Kyocera KBN010 KBN020
Machining hardened steel up to 60 HRC (such as SCM415) typically causes severe thermal degradation and layer peeling. The specialized PVD coating technology, MEGACOAT TOUGH, incorporates a high wear-resistance TiAlN layer with oxidation-resistant components to suppress diffusional wear. Paired with dedicated adhesion and stress-relief interlayers, it effectively prevents coating peeling. The grades utilize distinct substrate structures for tailored machining demands:
- KBN010 Substrate: Features a mixed structure of micro-grain and coarse-grain CBN to optimize wear resistance during continuous, high-speed finishing operations.
- KBN020 Substrate: Incorporates high CBN content with a high-purity TiN binder, delivering superior toughness and heat resistance for interrupted cutting.
Grade Features and Application Lineup
The grade lineup supports diverse machining conditions and flexible cutting edge preparations:
- KBN010 (High Wear Resistance): Specially designed for high-speed continuous finishing of hardened components.
- KBN020 (First Recommendation / General Purpose): Excellent all-around choice offering 1.2 times higher wear resistance and 1.5 times greater fracture resistance over conventional tools across continuous to interrupted machining.
- Cutting Edge Preparations: Available in negative and positive inserts with specialized hone options (ME, MET, MEH, MES) for burr minimization, stable interrupted cutting, and high-feed machining.
For more industrial cutting tools and machining equipment solutions, explore our industrial equipment catalog.
Technical Specifications
| Grade | Primary Application | Coating Technology | Substrate Composition | Recommended Machining Mode |
|---|---|---|---|---|
| KBN010 | Hardened Steel (HRC 60) | MEGACOAT TOUGH PVD | Micro-grain + Coarse-grain CBN | Continuous / High-speed finishing |
| KBN020 | Hardened Steel (HRC 60) | MEGACOAT TOUGH PVD | High-content CBN + TiN Binder | Continuous to Light / Heavy Interrupted |
Conclusion
Selecting Kyocera KBN010 KBN020 CBN inserts guarantees extended tool life, high fracture toughness, and reduced tooling expenses when turning hardened materials. For technical assistance or product inquiries, please contact Contact – LORIOT INDUSTRIAL.

