99.5% WFA grain White Aluminum oxide F46 for Abrasive wheels
99.5% WFA grain White Aluminum oxide F46 for Abrasive wheels has better performance then normal WFA grains for abrasive wheels. The Na2O content is lower, so it gains higher hardness. That will make abrasive wheels durable and sharper. In the meantime, 99.5% WFA grain F46 can bear higher temperature duaring cutting and grinding, it can improve the cutting edage and grinding surface quality.
Product Feature of 99.5% WFA grain White Aluminum oxide F46 for Abrasive wheels:
- The melting process is longer than ordinary white fused alumina. The low Na2O white alumina gets more fully crystallized crystal.
- Low Na2O content with max.0.2% and max.0.1%.
- Higher density than ordinary WFA. So it get better refractory performance.
- Higher toughness. It is suitable for making high quality abrasives wheels to increase lifetime.
Typical physical properties:
| Hardness: | Mohs:9.0 |
| α-Al2O3 conversion ratios | Min 90% |
| Maximum service temperature: | 1900 centigrade |
| Melting Point: | 2250 centigrade |
| Specific Gravity: | 3.95g/cm3 |
| Volume density | 3.6g/cm3 |
| Bulk density(LPD): | 1.55-1.95 g/cm3 |
| Color: | White |
| Particle shape: | Angular |
Typical Chemical composition:
| Item | Guarantee Value | Typical Value |
| AL2O3 | ≥99.6% | 99.68% |
| NA2O | ≤ 0.2% | 0.18% |
| SiO2 | ≤ 0.1% | 0.070% |
| Fe2O3 | ≤ 0.05% | 0.041% |
Particle size distribution:
| Particle | Mesh | Mesh Size(um) | Percentage(%) |
| Coarsest particle | +30 | 600 | 0 |
| Coarse particle | +40 | 425 | 6.5 |
| Basic particle | +45 | 355 | 50.6 |
| Mixed particle | +45 +50 | 355 300 | 86.9 |
| Fine particle | -60 | 250 | 0.8 |
Other grit size:
| Grit | Sieve1 | Sieve2 | Sieve 3 | Sieve 3 and Sieve4 | Pan | |||
| 100%Passing Mesh | Test Mesh | Max. Residue % | Test Mesh | Min. Residue % | Test Mesh | Min. Residue % | Max.3% Passing Mesh | |
| F24 | 16 | 20 | 25 | 25 | 45 | 25 30 | 65 | 35 |
| F30 | 18 | 25 | 25 | 30 | 45 | 30 35 | 65 | 40 |
| F36 | 20 | 30 | 25 | 35 | 45 | 35 40 | 65 | 45 |
| F40 | 25 | 35 | 30 | 40 | 40 | 40 45 | 65 | 50 |
| F46 | 30 | 40 | 30 | 45 | 40 | 45 50 | 65 | 60 |
| F54 | 35 | 45 | 30 | 50 | 40 | 50 60 | 65 | 70 |
| F60 | 40 | 50 | 30 | 60 | 40 | 60 70 | 65 | 80 |
| F70 | 45 | 60 | 25 | 70 | 40 | 70 80 | 65 | 100 |
| F80 | 50 | 70 | 25 | 80 | 40 | 80 100 | 65 | 120 |
| F90 | 60 | 80 | 20 | 100 | 40 | 100 120 | 65 | 140 |
| F100 | 70 | 100 | 20 | 120 | 40 | 120 140 | 65 | 200 |
| F120 | 80 | 120 | 20 | 140 | 40 | 140 170 | 65 | 230 |
| F150 | 100 | 140 | 15 | 170 200 | 40 | 170 200 230 | 65 | 325 |
| F180 | 120 | 170 | 15 | 200 230 | 40 | 200 230 270 | 65 | |
| F220 | 140 | 200 | 15 | 230 270 | 40 | 230 270 325 | 60 | |
Main Application:
- Resin bonded cutting and grinding discs.
- Depressed center grinding wheels.
- Fiber discs.
- Sanding blocks.
- Vitrified grinding wheels.
- Net grinding wheel
- Polishing wheels.
- Whetstone and lapping stone.
- Polishing wax.
- Mounted point.
Production details:
Product Qualification of White fused alumina
Packing of White fused alumina
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