High Quality WFA F60 Abrasive Grain for Vitrified Grinding Wheel
High Quality WFA F60 Abrasive Grain for Vitrified Grinding Wheel boasts high purity and extremely low Na₂O impurity content, making it a core raw material for manufacturing high-performance ceramic grinding wheels. It features high hardness, good toughness, and stable self-sharpening properties, effectively improving grinding efficiency and service life. During high-temperature sintering, the low-sodium content increases the proportion of the α-phase in alumina, preventing abnormal grain growth and ensuring uniform wheel structure and stable strength. This abrasive generates minimal heat during grinding, minimizing workpiece burns, and is widely applicable for precision grinding of hard materials such as high-speed steel, die steel, and stainless steel.
Product Feature of High Quality WFA F60 Abrasive Grain for Vitrified Grinding Wheel:
- 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 | |
| WFA F24 | 16 | 20 | 25 | 25 | 45 | 25 30 | 65 | 35 |
| WFA F30 | 18 | 25 | 25 | 30 | 45 | 30 35 | 65 | 40 |
| WFA F36 | 20 | 30 | 25 | 35 | 45 | 35 40 | 65 | 45 |
| WFA F40 | 25 | 35 | 30 | 40 | 40 | 40 45 | 65 | 50 |
| WFA F46 | 30 | 40 | 30 | 45 | 40 | 45 50 | 65 | 60 |
| WFA F54 | 35 | 45 | 30 | 50 | 40 | 50 60 | 65 | 70 |
| WFA F60 | 40 | 50 | 30 | 60 | 40 | 60 70 | 65 | 80 |
| WFA F70 | 45 | 60 | 25 | 70 | 40 | 70 80 | 65 | 100 |
| WFA F80 | 50 | 70 | 25 | 80 | 40 | 80 100 | 65 | 120 |
| WFA F90 | 60 | 80 | 20 | 100 | 40 | 100 120 | 65 | 140 |
| WFA F100 | 70 | 100 | 20 | 120 | 40 | 120 140 | 65 | 200 |
| WFA F120 | 80 | 120 | 20 | 140 | 40 | 140 170 | 65 | 230 |
| WFA F150 | 100 | 140 | 15 | 170 200 | 40 | 170 200 230 | 65 | 325 |
| WFA F180 | 120 | 170 | 15 | 200 230 | 40 | 200 230 270 | 65 | |
| WFA 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
