
iron. High-speed finishing of gray cast iron with long tool life is also possible.
temperature. Compared to other conventional tool materials, CBN has higher hardness and excellent thermal resistance. With these distinct characteristics, SUMIBORON can perform machining of hardened steel, hard cast iron and exotic alloys which was previously only done by grinding. Excellent efficiency and longer tool life can also be achieved from high-speed A finishing of cast iron.
| Structure Features | Structure | CBN Content Hardness (GPa) | Grade | Work Materials/Applications | Features | ||
| Cast Iron, Titanium | ・Containing no binder, the nano-to sub-micron CBN | ||||||
| Purely CBN | particles have a directly bonded structure | ||||||
| High | 54 | Alloy, Pure Titanium, |
particles, firmly NCB100 ・The high hardness and thermal conductivity make it
Co-Cr Alloy, Cemented highly efficient with a long tool life when machining bonded Carbide, Cermet exotic alloys such as titanium alloys and Co-Cr alloys Cemented Carbide,
Chilled Cast Iron, Ni-Hard ・High CBN content. Structure consists of
| Mainly CBN | BN700 | strongly fused CBN grains | |
| Cast, Iron, Sintered | |||
| grains fused | BN7000 | Ferrous Alloy, | ・Suited to cutting cast iron, heat-resistant |
| BN7500 | |||
| together | Heat-resistant Alloy, Cast | alloy, cemented carbide and other |
BNS800 Iron, Sintered Ferrous high-hardness materials Alloy BN1000/BN2000/BN350 ・CBN grains are fused together strongly
Mainly CBN Alloy Steel, Case Hardened Steel, BNX10/BNX20/BNX25 with a special ceramic binder grains held Carbon Tool Steel, Bearing Steel, ・Strong CBN binding provides superior BN500/BNC2010/BNC2020
| together with a | Low | 27 | Die Steel, Ductile Cast Iron | wear resistance and toughness when | |
| BNC300/BNC100/BNC160 | |||||
| binder | cutting hardened steel and cast iron | ||||
| BNC200/BNC500 | |||||
| Grade Map |
Work Material Application High-speed Cutting Finishing to Light Cutting Medium Cutting Rough to Heavy Cutting
| Classification | − | H01 | H10 | H20 | H30 | ||
| BNC2010 | |||||||
| BNC2020 | BNC300 | ||||||
| Coated |
SUMIBORON BNC100 BNC160
BNC200 Hardened Steel BN1000 Uncoated BN2000
BNX10 BNX20 BNX25,BN350
| Classification | − | 01 | 10 | 20 | 30 | ||
| Sintered | BN7500 | ||||||
| Alloy | Uncoated | ||||||
| SUMIBORON | BN7000 | ||||||
| Classification | − | K01 | K10 | K20 | K30 | ||
| Coated | BNC500 | ||||||
| SUMIBORON | |||||||
| NCB100 |
| Cast Iron | Uncoated | BN500 | |
| SUMIBORON | BN7000 | ||
| BNS800 |
Classification − S01 S10 S20 S30
NCB100 Uncoated BN7000 Exotic Alloy SUMIBORON BNS800
A32 *Dedicated for Ductile Cast Iron