Zirconia corundum fraction for firebricks
Description:
Zirconia corundum fraction with ZrO2 22-26% content is a good refractory material for making corundum refractory bricks and ladle components. The most distinct advantage of Zirconia fused alumina is high roughness and durability. ZA25 fractions can be resistant to thermal impact. So ZA base firebrick works excellently in the glass furnace and kiln.
Zirconia corundum fraction for firebricks Characteristic:
- High refractoriness and thermal resistance to melting erosion.
- Excellent wear resistance for its small crystal size at 10-20um.
- Wear resistance to heavy-duty load.
Chemical composition of Zirconia corundum fraction for firebricks:
| 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 Zirconia corundum fraction for firebricks:
| 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：
- Glass melting furnace constables.
- High-grade refractory bricks.
- Wear a resistant hammer mount.
Production of Zirconia corundum fraction for firebricks：
Package of Zirconia corundum fraction for firebricks:
- 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: What grain shape of Zirconia fused alumina do you have?
A: We can make sharp ZA grains with angular. In the meantime, we can make round grains by barmac milling production.
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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