- Dark Brown Crystal Appearance: Reflects high crystal integrity and excellent thermal stability.
- Complete Monocrystalline Structure: Well-formed crystals ensure consistent cutting behavior and long tool life.
- High Crystal Strength: Withstands heavy grinding loads and high contact pressure.
- Excellent Thermal Stability: Maintains performance under high-temperature grinding conditions.
- Stable Cutting Performance: Delivers smooth grinding action and reliable surface finish.
- Optimized for Metal Bond and Electroplated Systems: Provides strong grain retention and durable tool performance.
CBN-A90
20+ Years Experience
Ultra-Precision Quality
Customized Solutions
CBN-A90 is a high-grade monocrystalline cubic boron nitride powder developed for demanding grinding applications requiring high thermal stability, crystal integrity, and long tool life. Produced under controlled HPHT conditions, this grade features a dark brown appearance with complete, well-formed crystal morphology, delivering stable cutting performance in metal bond systems and electroplated tools used for machining ferrous materials and hardened steels.
Features
Specifications
| US / International Standard (ANSI B74-1981) | China Standard (JB/T 17990-1990) | Japan Standard (JIS 6002-63) |
|---|---|---|
| D213 | 70/80 | 70# |
| D180 | 80/100 | 80# |
| D151 | 100/120 | 100# |
| D126 | 120/140 | 120# |
| D107 | 140/170 | 140# |
| D91 | 170/200 | 170# |
| D76 | 200/230 | 200# |
| D64 | 230/270 | 230# |
| D54 | 270/325 | 270# |
| D46 | 325/400 | 325# |
| 400/500 | 400# | |
| 500/600 | 500# |
Applications
Ferrous Metals
Designed for precision grinding of iron-based materials and hardened steels.
- Hardened steel surface grinding
- Alloy steel finishing
- High-precision ferrous component machining
Automotive
Used in grinding and finishing of automotive steel components under high-load conditions.
- Gear and shaft grinding
- Engine and transmission component processing
- High-durability steel part machining
Aerospace
Used for machining high-strength ferrous alloys with strict stability requirements.
- Precision grinding of aerospace steel components
- High-temperature surface finishing
- Long-life tool applications