Characteristics and Applications of CBN B500 grade:
- Black Color
- Semi-blocky
- Semi-toughness
- High thermal stability
- Optimum the balance of fracture strength and break down characte-ristics to enhance wheel life and grinding efficiency
- Most widely used in CBN vitrified bond tools
Cubic Boron Nitride Grain Size Availability
| Grade/Size | 40/50 | 50/60 | 60/70 | 70/80 | 80/100 | 100/120 | 120/140 | 140/170 | 170/200 | 200/230 | 230/270 | 270/325 | 325/400 |
| CBN-A00 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ |
| CBN-A01 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ |
| CBN-A02 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ |
| CBN-A50 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ |
| CBN-A80 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ |
| CBN-A90 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ |
| CBN-B00 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ |
| CBN-B50 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ |
CBN Abrasive Mesh Sizes Comparison Chart
|
REALTEC |
International Standard |
FEPA (Euro) |
USA |
JAPAN |
Theoretical Basic Size |
RUSSIA |
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|
GB/T6406-1995 |
ISO |
ANSI B74.16-1971 |
JIS4130-1998 |
9206-80 |
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| Mesh | Grain Size | Grain | Mesh | Size | Grain | Mesh | Mesh | Grain Size | Mesh | Grain Size | Inch | Millimeter | Mesh | Grain Size |
| 40/50 | 425/300 | 427 | 40/50 | 425/300 | B427 | 355/300 | 40/50 | 425/300 | 40/50 | 425/300 | 0.015 | 0.378 | 500/400 | 500/400 |
| 50/60 | 300/250 | 301 | 50/60 | 300/250 | B301 | 300/250 | 50/60 | 300/250 | 50/60 | 300/250 | 0.011 | 0.288 | 400/315 | 400/315 |
| 60/80 | 250/180 | 252 | 60/80 | 250/180 | B252 | 250/180 | 60/80 | 250/180 | 60/80 | 250/180 | 0.009 | 0.226 | 250/200 | 250/200 |
| 80/100 | 180/150 | 181 | 80/100 | 180/150 | B181 | 180/150 | 80/100 | 180/150 | 80/100 | 180/150 | 0.0069 | 0.174 | 200/160 | 200/160 |
| 100/120 | 150/125 | 151 | 100/120 | 150/125 | B151 | 150/125 | 100/120 | 150/125 | 100/120 | 150/125 | 0.0058 | 0.148 | 160/125 | 160/125 |
| 120/140 | 125/106 | 126 | 120/140 | 125/106 | B126 | 125/106 | 120/140 | 125/106 | 120/140 | 125/106 | 0.0048 | 0.123 | 125/100 | 125/100 |
| 140/170 | 106/90 | 107 | 140/170 | 106/90 | B107 | 106/90 | 140/170 | 106/90 | 140/170 | 106/90 | 0.0041 | 0.103 | 100/80 | 100/80 |
| 170/200 | 90/75 | 91 | 170/200 | 90/75 | B91 | 90/75 | 170/200 | 90/75 | 170/200 | 90/75 | 0.0034 | 0.866 | 80/63 | 80/63 |
| 200/230 | 75/63 | 76 | 200/230 | 75/63 | B76 | 75/63 | 200/230 | 75/63 | 200/230 | 75/63 | 0.0030 | 0.075 | 63/50 | 63/50 |
| 230/270 | 63/53 | 64 | 230/270 | 63/53 | B64 | 63/53 | 230/270 | 63/53 | 230/270 | 63/53 | 0.0026 | 0.066 | 50/40 | 50/40 |
| 270/325 | 53/45 | 54 | 270/325 | 53/45 | B54 | 53/45 | 270/325 | 53/45 | 270/325 | 53/45 | 0.0022 | 0.057 | ||
| 325/400 | 45/38 | 46 | 325/400 | 45/38 | B46 | 45/38 | 325/400 | 45/38 | 325/400 | 45/38 | 0.0019 | 0.048 | ||