
Micron Grade |
Micron range |
Mesh Equivalent |
| 0.1 | 0 - 1/4 | 200,000 |
| 0.25 | 0 - 1/2 | 100,000 |
| 0.625 | 1/4 - 1 | 60,000 |
| 1 | 0 - 2 | 15,000 |
| 1.25 | 0.5 - 2 | 14,000 |
| 1.5 | 1 - 3 | 13,000 |
| 1.75 | 0.5 - 3 | 12,500 |
| 2 | 1 - 3 | 12,000 |
| 2.25 | 2 - 3 | 10,000 |
| 3 | 2 - 4 | 8,000 |
| 3.5 | 3 - 5 | 7,000 |
| 4 | 3 - 6 | 5,000 |
| 5 | 4 - 6 | 4,000 |
| 6 | 4 - 8 | 3,000 |
| 7.5 | 5 - 10 | 2,200 |
| 8 | 6 - 10 | 2,000 |
| 9 | 6 - 12 | 16,000 |
| 10 | 8 - 12 | 1,800 |
| 12 | 8 - 15 | 1,500 |
| 12.5 | 10 - 15 | 1,350 |
| 15 | 10 - 20 | 1,200 |
| 17 | 12 - 22 | 1,100 |
| 20 | 15 - 25 | 1,000 |
| 22.5 | 20 - 25 | 900 |
| 25 | 20 - 30 | 800 |
| 29 | 22 - 36 | 700 |
| 30 | 20 - 40 | 600 |
| 35 | 30 - 40 | 550 |
| 40 | 35 - 45 | 530 |
| 45 | 40 - 50 | 520 |
| 50 | 40 - 60 | 500 |
| 67 | 54 - 80 | 325/400 |
| 100 | 80 - 125 | 270/325 |
Other sizes as well as custom packaging are available on request

Characteristics
Polycrystaline diamond is particularly suited for high-performance lapping applications.
Thanks to its polycrystalline structure without cleavage planes, it is considerably stronger than monocrystalline diamond. This allows for higher process pressures and thus increased material removal rates in lapping applications.
Typical applications
Lapping of:
- sapphire
- ceramic oxides
- tungsten carbide
- composite materials
Other sizes as well as custom packaging are available on request

Characteristics
Natural diamond is precision graded and has a blocky, sharp-edged particle shape. It is free of catalyst metals, which makes it the preferred choice for plated tools and other applications requiring maximum cleanliness. Natural diamond is also used in lapping and polishing processes with special requirements.
Typical applications
Tools and surface applications:
- plated diamond tools
- grinding wheels
- dental tools
- pellets
Lapping and polishing of:
- wire drawing dies
- special applications
Other sizes as well as custom packaging are available on request

Technical Data
Appearance (dry state)
|
Color |
Black |
|||
| Chemical composition: | Chemical formula: |
B4C Application |
|||
Grade: |
AG |
CG |
RG |
NG |
|
(Abrasive) |
(Ceramic) |
(Refractopy) |
(Nuclear) |
||
B + C min.: |
98 | 99 | 94 | 98 | |
B (Boron) min.: |
76 | 77 | 75 | 76 | |
C (Carbon) max.: |
23 | 22.5 | 24 | 24 | |
B²O³ |
0.50 | 0.10 | 1.0 | 0.1 | |
Fe (Iron) max.: |
0.2 | 0.10 | 0.5 | 0.1 | |
Si (Silicon) |
/ | 0.01 | 0.3 | 0.01 | |
N (Nitrogen) |
/ | 0.01 | 0.5 | 0.5 | |
Isotope B10 (atomic weight) |
19.5-21.5% | ||||
Physical Data: |
Knoop hardness (0.1) |
3000 | |||
Mohs hardness: |
< 9.5 (Diamond`s Mohs hardness is 10) | ||||
Specific gravity: |
2.51 | ||||
Melting point: |
2723 °F | ||||
Structure: |
Monocrystalline | ||||
Other sizes as well as custom packaging are available on request