CBN (Cubic Boron Nitride)
SUMIBORON
Characteristic Values
Carbon Content Grain Size Hardness HV Main Coating Coating Thickness
Class Grade Binder TRS (GPa) Characteristics
(%) (μm) (GPa) Components (µm)
Improves the wear resistance of coating and
BNC2010 TiCN 50 ~ 55 2 30 ~ 32 1,10 ~ 1,20 TiCN multi-
layered
1,5 substrate and stably achieves excellent surface
roughness.
Grades


Provides long tool life in general and high-efficincy
BNC2020 TiN 70 ~ 75 5 34 ~ 36 1,20 ~ 1,30 TiAlN multi-
layered
1,5 cutting thanks to tough substrate coated with a highly
wear-resistant and highly adhesive layer.
Highly wear resistant coating makes this grade
BNC100 TiN 40 ~ 45 1 29 ~ 32 1,05 ~ 1,15 TiAlN 1 suited for high speed finishing.

BNC160 TiN 60 ~ 65 3 31 ~ 33 1,10 ~ 1,20 TiAlN/TiCN 2 Stable, high precision finishing of hardened steel.

Tough substrate with high wear resistant coating
BNC200 TiN 65 ~ 70 4 34 ~ 36 1,15 ~ 1,25 TiAlN/TiCN 2 provide longer tool life.

Suited for finishing when there is a combination
BNC300 TiN 60 ~ 65 1 33 ~ 35 1,15 ~ 1,25 TiAlN 2 of continuous and interrupted cutting.

Optimum wear resistance.
BNX10 TiCN 40 ~ 45 3 27 ~ 31 0,80 ~ 0,90 ̶ ̶
Suited to continuous, high-speed cutting.

Ultimate wear and fracture resistance. Suited to
BN1000 TiCN 40 ~ 45 1 27 ~ 31 0,90 ~ 1,00 ̶ ̶
high-speed cutting.

Crater resistant grade, suitable for high efficiency
BNX20 TiN 55 ~ 60 3 31 ~ 33 0,95 ~ 1,10 ̶ ̶
cutting under high temperature conditions.
Excellent fracture resistance during high speed
BNX25 TiN 65 ~ 70 4 29 ~ 31 1,00 ~ 1,10 ̶ ̶ cutting. Suited to high speed interrupted cutting
of hardened steel.
A general purpose grade for hardened steel that
BN2000 TiN 50 ~ 55 2 31 ~ 34 1,05 ~ 1,15 ̶ ̶ provides a high degree of fracture and wear
resistance.
High cutting edge strength. suited to heavy
BN350 TiN 60 ~ 65 1 33 ~ 35 1,20 ~ 1,30 ̶ ̶
interrupted cutting.

Co Maintains optimum cutting edge sharpness.
BN7500 Compound
90 ~ 95 1 41 ~ 44 1,40 ~ 1,50 ̶ ̶
Suited for finishing of sintered alloy.
Components
Sintered


Co Maintains good wear and fracture resistance in
BN700 Compound
90 ~ 95 2 40 ~ 43 1,20 ~ 1,30 ̶ ̶
rough cutting of sintered components.

Co Improved wear and fracture resistance in rough
BN7000 Compound
90 ~ 95 2 41 ~ 44 1,30 ~ 1,40 ̶ ̶
cutting of sintered components.

Co Maintains good wear and fracture resistance in
BN700 Compound
90 ~ 95 2 40 ~ 43 1,20 ~ 1,30 ̶ ̶
rough cutting of cast iron and exotic alloy.

Co Improved wear and fracture resistance in rough
BN7000 Compound
90 ~ 95 2 41 ~ 44 1,30 ~ 1,40 ̶ ̶
cutting of cast iron and exotic alloy.

100% solid CBN structure with good
BNS800 Al Alloy 85 ~ 90 8 39 ~ 42 0,95 ~ 1,10 ̶ ̶
thermal impact resistance.
Substrate with excellent wear resistance and
BNC500 TiC 60 ~ 65 4 32 ~ 34 1,00 ~ 1,10 TiAlN 2 coating makes this grade suited for hard-to-cut
cast iron.


B8