CERABON CBN - Abrasive grit with high hardness
mono crystalline | poly crystalline | various coatings
The high hardness grade, highest temperature resistance and chemical stability when in contact with iron, make CERABON CBN the best abrasive grit for processing ferrous metals. Cubic boron nitride is, after natural diamond, the second hardest material. The synthesis from hexagonal boron nitride is similar to the fabrication of synthetic diamonds made of graphite.
The most important advantages of CBN abrasive is its hardness, abrasion resistance, strength and resistance to thermal and chemical impact.
CERABON - Products
Very irregular shaped, sharp crystals of the lowest strength, suitable for resin bonds. For tools with low abrasive capacities and the most sensitive materials.
Irregular shaped, sharp crystals of low strength. Especially suitable for vitrified bond applications and requirements of medium intensity. Impact loads will cause the breaking off of tiny fragments and thus maintain the free-cutting features in conjunction with an acceptable lifetime.
Transparent, irregular shaped, sharp crystal shape with similar strength like CERABON CBN 20. The surface characteristic makes it ideal for applications in electroplated tools.
For applications with vitrified and resin bonds. Its fracture strength and behavior allows an optimal lifetime and surface quality in conjunction with long dressing intervals.
Mainly used for elctroplated tools. It shows the highest fracture strength among the single crystal grits and allows for an extremely high abrasive capacity and long lifetime. Suitable for grinding of hardened tool steel, carbon steel, steel alloys, Ni and Co based alloys.
Extremely high fracture strength unmatched by any mono crystalline CBN grit. Grit shape, surface characteristics and an evenly distributed strength guarantee high abrasive capacities and excellent surface qualities, regardless of the grit size. The grit is mainly used in metal and electroplated tools as well as vacuum brazed bond systems.
Suitable for high impact loads. Also for honing, where strong, blocky particles with a negative cutting geometry are required. High thermal stability guarantees increased abrasive capacities along with reduced power input.
For high performance grinding wheels with medium hard vitrified bond systems.
Available grit sizes
| Grit sizes | CBN 10 | CBN 20 | CBN 30 | CBN 40 | CBN 50 | CBN 55 | CBN 60 | CBN 80 | |
| Mesh | FEPA | ||||||||
| 30/35 | B 601 | X | X | X | X | ||||
| 30/40 | B 602 | X | X | X | X | ||||
| 35/40 | B 501 | X | X | X | X | ||||
| 35/45 | --- | X | X | X | X | ||||
| 40/45 | B 426 | X | X | X | X | ||||
| 40/50 | B 427 | X | X | X | X | ||||
| 45/50 | B 356 | X | X | X | X | ||||
| 45/60 | B 357 | X | X | X | X | ||||
| 50/60 | B 301 | X | X | X | X | X | X | X | |
| 60/70 | B 251 | X | X | X | X | X | X | X | X |
| 60/80 | B 252 | X | X | X | X | X | X | X | X |
| 70/80 | B 213 | X | X | X | X | X | X | X | X |
| 80/100 | B 181 | X | X | X | X | X | X | X | X |
| 100/120 | B 151 | X | X | X | X | X | X | X | X |
| 120/140 | B 126 | X | X | X | X | X | X | X | X |
| 140/170 | B 107 | X | X | X | X | X | X | X | X |
| 170/200 | B 91 | X | X | X | X | X | X | X | X |
| 200/230 | B 76 | X | X | X | X | X | X | X | X |
| 230/270 | B 64 | X | X | X | X | X | X | X | X |
| 270/325 | B 54 | X | X | X | X | X | X | X | X |
| 325/400 | B 46 | X | X | X | X | X | X | X | X |
Comparison data chart
Toughness comparison
The most important advantages of CBN abrasives is its hardness, abrasion resistance, strength and resistance to thermal and chemical impact. At the same time CERABON CBN grit provides sharp cutting edges and in comparison outperforms conventional abrasives like SiC and Al2O3 in every respect. Highest temperature resistance and the chemical characteristic of not releasing carbon to steel, in elevated temperatures, makes CBN the most suitable abrasive for processing ferrous and hardened metals. Normally diamond abrasive can not be used in these kinds of applications. Different types of CBN with different grades in hardness provide a wide choice for applications with various load impacts and bonds.
CBN coated (Ti, Ni, CNi)
Coatings with Titan (Ti), Nickel (Ni) and chemical Nickel (CNi) are available for all types.
Titan (Ti)
1% (available also 5%)
Nickel (Ni)
56% (available also 30% and 60%)
Chemical Nickel (CNi)
56% (available also 30% and 60%)