ZA25 Zirconia Fused Alumina is a unique abrasive grit for it’s durable grinding ability. It is not suitable for wear resistance component and sandblasting, but also especially for grinding wheels such as heavey duty grinding wheel,centerless grinding wheel and heavy load cutting disc.
ZA25 Zirconia fused alumina is produced from zirconium material and Alumina with a electrofusing process. The zirconium and aluminum oxide element mixed thoroughly to get a kind of crystal with small crystal size and tight structure. That special structure make the ZA25 Abrasive grain extremely durable.
ZA25 Zirconia Fused Alumina Characteristic:
- Excellent toughness and self-sharpening ability.
- Small crystal size at 10-20um. That make Zirconia abrasive grit get longer service life.
- High strength even in case of heavy load.
Chemical composition of ZA25 Zirconia Fused Alumina
| Item | Content(%) |
| AL2O3 | 70-72% |
| ZrO2 | 22-26% |
| TiO2 | Max 0.8% |
| Fe2O3 | Max 0.3% |
| SiO2 | Max 0.8% |
| Y2O3 | Max 1.0% |
Typical physical properties of ZA25 Zirconia Fused Alumina:
| Item | ZA25 |
| Specific Gravity | 4.30g/cm3 |
| Bulk density(LPD) | 1.85-2.30g/cm3 |
| Vicker hardness(100g Load) | 20 GPa |
| Melting Point | 1940°C |
| Particle shape | Monoclinical tetragonal |
| Chemical property | Amphoteric |
| Reaction with acid and alkali | NO |
| Reaction with carbon | Forming carbide since 1650 °C |
| Crystal Size | ≤20μm |
| Maximum service temperature | 1600 °C |
| Color | Gray |
| Specific heat capacity(cal/g.C) | 0.2205(50-500°C) |
| Heat conductivity | 0.2718 cal/cm2.sec. °C |
| Linear expansivity (X10-6) | 6.82(100-700°C) |
Application：
- Bonded Abrasives:
Used to produce heavy-duty grinding wheels, barren grinding wheels, rail snagging & grinding wheel, cutting disc, and high-grade resin bonded grinding wheels,centerless grinding wheel.
Abrasive Disc for grinding and cutting difficult to grind materials.
Raw material for high-end production of cutting discs, grinding discs, polishing wheels, etc.
- Used to produce wear-resistant hammers, wear-resistant rollers and other wear-resistant products.
- Abrasive sandblasting and surface treatment, suitable for marble, super hard steel and other alloy.
- Used for high-level refractory materials to make zirconia refractory bricks, etc.
Available Sizes and Bulk Denstiy
| F grit | Mean size(um) | Bulk density(g/cm3) |
| F8 | 2460 | 2.24-2.32 |
| F10 | 2085 | 2.19-2.26 |
| F12 | 1765 | 2.16-2.24 |
| F14 | 1470 | 2.14-2.19 |
| F16 | 1230 | 2.12-2.18 |
| F20 | 1040 | 2.03-2.16 |
| F22 | 885 | 2.02-2.13 |
| F24 | 745 | 2.00-2.10 |
| F30 | 625 | 1.97-2.06 |
| F36 | 525 | 1.95-2.02 |
| F40 | 438 | 1.93-1.99 |
| F46 | 370 | 1.92-1.98 |
| F54 | 310 | 1.90-1.98 |
| F60 | 260 | 1.88-1.96 |
| F70 | 218 | 1.86-1.97 |
| F80 | 185 | 1.85-1.96 |
| F90 | 154 | 1.83-1.94 |
| F100 | 129 | 1.82-1.95 |
| F120 | 109 | 1.82-1.93 |
| F150 | 82 | 1.80-1.92 |
| F180 | 69 | 1.78-1.90 |
| F220 | 58 | 1.80-1.90 |
Production of Zirconia Aluminum Oxide：
Package of Zirconia Aluminum Oxide:
- 1MT in a jumbo bag with rings.
- 25 KGS in a PVC Bag,then 40 bags in a jumbo bag.
- 25 kgs in paper bag, then 40 bags in a pallet.
- Customized package are available.
FAQ:
Q: What is the MOQ of each grit size of Zirconia Fused Alumina?
A: MOQ is 25 kgs for a single grit size.
Q: How many types of Zirconia Fused alumina grains do you have?
A: By grit type, we get F grit and P grit. By content of Zirconium, we have 25% Zirconia and 40% Zirconia. By quality level, we have medium level and high level.(High quality level get smaller crystal size and higher strength). By bulk density, there are normal one and high bulk density one.
Q: What is the HS code of Zirconia Fused Alumina?
A: HS code is 2818109000
Q: Do you get any certificate?
A: Yes, we get ISO 9001:2015 certificate for production system.
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