White Fused Alumina
Product Introduction of White Fused Alumina
White fused alumina is one of the most commonly used abrasive materials for abrasive tools. The white fused alumina F grit could be used for bonded abrasives such as cutting wheels, grinding wheels, vitrified grinding wheels, whetstones, etc. White fused alumina is made by a process of high temperature melting aluminium oxide method in a fixing furnace. It is of excellent self-sharpening property, good toughness, and aggressive grinding ability.
Typical chemical analysis of White Fused Alumina (F46)
| AL2O3 | 99.62% |
| Fe2O3 | 0.02% |
| Na2O | 0.18% |
| K2O | 0.01% |
| SiO2 | 0.07% |
| CaO | 0.02% |
| MgO | 0.01% |
| L.I.O. | 0.05% |
Typical physical properties of White Fused Alumina (F46)
| Hardness: | Mohs:9.0 |
| Maximum service temperature: | 1900 centigrade |
| Melting Point: | 2250 centigrade |
| Specific Gravity: | 3.95g/cm3 |
| Volume density | 3.6g/cm3 |
| Bulk density(LPD): | 1.70g/cm3 |
| Whiteness: | 85% |
| Milling Roughness: | 33.6% |
| Particle shape: | Angular |
Bulk density of White fused alumina:
| F Grit Size | Bulk Density(LPD) in g/cm3 |
| F008 | 1.79-1.88 |
| F012 | 1.78-1.88 |
| F014 | 1.77-1.86 |
| F016 | 1.75-1.85 |
| F020 | 1.74-1.85 |
| F022 | 1.73-1.84 |
| F024 | 1.73-1.83 |
| F030 | 1.73-1.82 |
| F036 | 1.72-1.82 |
| F040 | 1.71-1.81 |
| F046 | 1.70-1.80 |
| F054 | 1.68-1.79 |
| F060 | 1.68-1.78 |
| F070 | 1.63-1.73 |
| F080 | 1.61-1.71 |
| F090 | 1.59-1.69 |
| F100 | 1.58-1.68 |
| F120 | 1.55-1.62 |
| F150 | 15.2-1.61 |
| F180 | 1.50-1.60 |
| F220 | 1.48-1.58 |
Product Feature of White Fused Alumina
- Excellent self-sharpening ability.
- High hardness.
- Easy to mix with colorant to get color wheels.
- Good grinding ability. It will get sharp grinding of abrasive wheels.
- High Al2O3 purity with low Na2O and low SiO2
- Suitable for a large range of substrate including stainless steel, iron, metal, steel, etc.
Applications of White Fused Alumina
- Resin-bonded cutting and grinding discs.
- Depressed center grinding wheels.
- Fiber discs.
- Sanding blocks.
- Vitrified grinding wheels.
- Net grinding wheel.
- Mounted point.
- Polishing wheels.
- Whetstone and lapping stone.
- Polishing wax.
Product Specification of White Fused Alumina
| Grit size | Sieve 1 | % | Sieve 2 | % | Sieve 3 | % | Sieve 4 | % | Sieve 5 | % |
| F008 | +4000um | 0 | +2800um | ≤20% | +2360um | ≥45% | +2360+2000um | ≥70% | -1700um | ≤3% |
| F010 | +3350um | 0 | +2360um | ≤20% | +2000um | ≥45% | +2000+1700um | ≥70% | -1400um | ≤3% |
| F012 | +2800um | 0 | +2000um | ≤20% | +1700um | ≥45% | +1700+1400um | ≥70% | -1180um | ≤3% |
| F014 | +2360um | 0 | +1700um | ≤20% | +1400um | ≥45% | +1400+1180um | ≥70% | -1000um | ≤3% |
| F016 | +2000um | 0 | +1400um | ≤20% | +1180um | ≥45% | +1180+1000um | ≥70% | -850um | ≤3% |
| F020 | +1700um | 0 | +1180um | ≤20% | +1000um | ≥45% | +1000+850um | ≥70% | -710um | ≤3% |
| F022 | +1400um | 0 | +1000um | ≤20% | +850um | ≥45% | +850+710um | ≥70% | -600um | ≤3% |
| F024 | +1180um | 0 | +850um | ≤25% | +710um | ≥45% | +710+600um | ≥65% | -500um | ≤3% |
| F030 | +1000um | 0 | +710um | ≤25% | +600um | ≥45% | +600+500um | ≥65% | -425um | ≤3% |
| F036 | +850um | 0 | +600um | ≤25% | +500um | ≥45% | +500+425um | ≥65% | -355um | ≤3% |
| F046 | +600um | 0 | +425um | ≤30% | +355um | ≥40% | 355+300um | ≥65% | -250um | ≤3% |
| F054 | +500um | 0 | +355um | ≤30% | +300um | ≥40% | +300+250um | ≥65% | -212um | ≤3% |
| F060 | +425um | 0 | +300um | ≤30% | +250um | ≥40% | 250+212um | ≥65% | -180um | ≤3% |
| F070 | +355um | 0 | +250um | ≤25% | +212um | ≥40% | +212+180um | ≥65% | -150um | ≤3% |
| F080 | +300um | 0 | +212um | ≤25% | +180um | ≥40% | +180+150um | ≥65% | -125um | ≤3% |
| F090 | +250um | 0 | +180um | ≤20% | +150um | ≥40% | +150+125um | ≥65% | -106um | ≤3% |
| F100 | +212um | 0 | +150um | ≤20% | +125um | ≥40% | +125+106um | ≥65% | -75um | ≤3% |
| F120 | +180um | 0 | +125um | ≤20% | ≥40% | ≥40% | +106+90um | ≥65% | -63um | ≤3% |
| F150 | +150um | 0 | +106um | ≤15% | +75um | ≥40% | +75+63um | ≥65% | -45um | ≤3% |
| F180 | +125um | 0 | +90um | ≤15% | +75um | * | +75+63um | ≥40% | -53um | * |
| F220 | +106um | 0 | +75um | ≤15% | +63um | * | +63+53um | ≥40% | -45um | * |
| Size | D3(um) | D50(um) | D94（um) |
| F230 | ＜82 | 53.0±3.0 | >34 |
| F240 | ＜70 | 44.5±2.0 | >28 |
| F280 | ＜59 | 36.5±1.5 | >22 |
| F320 | ＜49 | 29.2±1.5 | >16.5 |
| F360 | ＜40 | 22.8±1.5 | >12 |
| F400 | ＜32 | 17.3±1.0 | >8 |
| F500 | ＜25 | 12.8±1.0 | >5 |
| F600 | ＜19 | 9.3±1.0 | >3 |
| F800 | ＜14 | 6.5±1.0 | >2 |
| F1000 | ＜10 | 4.5±0.8 | >1 |
| F1200 | ＜7 | 3.0±0.5 | >1(at 80%) |
| F1500 | ＜5 | 2.0±0.4 | >0.8(at 80%) |
| F2000 | ＜3.5 | 1.2±0.3 | >0.5(at 80%) |
Packing of White Fused Alumina
- 25KGS/PVC Bag
- 1Metric Ton/Jumbo Bag
- 25KGS/PVC Bag,40Bags/Jumbo Bag
- 1 Metric Ton/Jumbo Bag/Pallet
- Other customized packages are available
