CBN
Characteristic Values
Part Material
Grade
Binder Carbon Content (%) Grain Size (μm) Hardness HV (GPa)
TRS (GPa)
Main Coating Components Coating Thickness (μm)
Features
Improved wear resistance from coating and substrate, achieves excellent and consistent surface finish. Utilising a tough substrate along with a highly wear- resistant and adhesive coating layer, to achieve long tool life in general-purpose to high-efficiency applications. Suitable for finishing of workpieces with a mixture of continuous and interrupted cutting portions.
TiCN Multiple Layers
BNC2010
TiCN 50 to 55
2
30 to 32
1.1 to 1.2
1.5
TiAlN Multiple Layers
BNC2020
TiN 70 to 75
5
34 to 36
1.4 to 1.5
1.5
BNC300
TiN 60 to 65
1
33 to 35
1.5 to 1.6
TiAIN
1
A
Grade suitable for high-speed finishing thanks to highly wear-resistant coating.
BNC100
TiN 40 to 45
1
29 to 32
1.0 to 1.1
TiAIN/TiCN
2
Achieves stable, high-precision finishing of hardened steel.
BNC160
TiN 60 to 65
3
31 to 33
1.2 to 1.3
TiAIN/TiCN
2
Provides long tool life thanks to tough substrate and highly wear-resistant coating.
BNC200
TiN 65 to 70
4
33 to 35
1.4 to 1.5
TiAIN
2
Hardened Steel
Grade with ultimate wear and fracture resistance, suitable for high-speed cutting.
BN1000
TiCN 40 to 45
1
27 to 31
0.9 to 1.0
—
—
General-purpose grade for hardened steel machining with a high degree of fracture and wear resistance. Grade with excellent crater wear resistance, suitable for high-efficiency cutting under high-temperature conditions.
BN2000
TiN 50 to 55
2
31 to 34
1.1 to 1.2
—
—
BNX20
TiN 55 to 60
3
31 to 33
1.0 to 1.1
—
—
Grade with ultimate cutting edge strength, suitable for heavy interrupted cutting.
BN350
TiN 60 to 65
1
33 to 35
1.5 to 1.6
—
—
Highly wear-resistant grade, suitable for high-speed continuous cutting.
BNX10
TiCN 40 to 45
3
27 to 31
0.9 to 1.0
—
—
Grade with superior fracture resistance in high-speed cutting and suited for high- speed interrupted cutting of hardened steel. Grade maintaining ultimate cutting edge sharpness, suitable for finishing of powdered metal. Grade exhibiting improved wear and fracture resistance in roughing of sintered materials.
BNX25
TiN 65 to 70
4
29 to 31
1.0 to 1.1
—
—
Co Compound
BN7500
90 to 95
1
41 to 44
2.0 to 2.1
—
—
Sintered Alloy
Co Compound
BN7000
90 to 95
2
41 to 44
1.8 to 1.9
—
—
Grade with 100% solid CBN structure and excellent thermal shock resistance.
BNS800
Al Alloy 85 to 90
8
39 to 42
0.9 to 1.1
—
—
Grade exhibiting wear and fracture resistance in cutting of cast iron and exotic alloys. Grade optimised for cast iron cutting. Provides superior wear and fracture resistance. Grade suitable for machining of hard-to-cut cast iron, thanks to the highly wear-resistant substrate and coating. Achieves high-efficiency, improved machining accuracy, and long tool life in machining of exotic alloys such as titanium alloy and Co-Cr alloys.
Co Compound
BN7000
90 to 95
2
41 to 44
1.8 to 1.9
—
—
Cast Iron
BN500
TiC 65 to 70
6
32 to 34
1.0 to 1.1
—
—
BNC500 (For Ductile Cast Iron)
TiC 60 to 65
4
32 to 34
1.1 to 1.2
TiAIN
2
NCB100
— 100
up to 0.5 51 to 54
1.8 to 1.9
—
—
Exotic Alloy
Transverse rupture strength measured with a test piece equivalent to the insert’s CBN layer
®
SUMIBORON Coated SUMIBORON Series
L2 on
A33
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