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Product Details:
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| Product Name: | Abrasives Zirconia Alumina 25% | Application: | Zircon Fused Alumina Brick And Building Materials |
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| ZrO2: | 40.3% | F Grade: | F4-F220 |
| Hardness: | 9.0 Mohs Scale | Standard: | FEPA JIS GB ASTM |
| High Light: | ASTM Fused Alumina Zirconia,40.3% Fused Alumina Zirconia,ASTM Zirconia Alumina Abrasive |
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Zirconia Fused Alumina ZA25 & ZA40 For Making Zircon Fused Alumina Brick And Building Materials
Zirconia Fused Alumina(ZA), other name Zirconium Aluminium Oxide,is an synthetic corundum produced from fusion/smelting high quality alumina powder and zirconia sand in 2000℃ electric arc furnaces. Alumina gives it aluminum oxide and zirconia sand gives it zirconium oxide(ZrO2). After the fusion process, the materials become liquid materials, and crushed (milled)into lump sizes.
Zirconia Fused Alumina Characteristics
Refractory/Fireproof
Zirconia Fused Alumina contains Zirconium Oxide(ZrO2) and Aluminium Oxide(Al2O3) which are important chemical contents for refractory performance. Ideal material for refractory bricks.
High Strength
Zirconia Fused Alumina has high hardness and strength(about 400N). It’s one of the most hard and strong artificial corundum.
Sharp Grain
Like other corundum, grains of ZA is sharp edged material ideal for cutting, lapping, polishing etc of metal surface.
High Density
Zirconia Fused Alumina has true gravity of about 4.3g/cm3, compared to about 3.9g/cm3 of Brown Fused Alumina and 3.6g/cm3 of White Fused Alumina. And bulk density about 2.2g/cm3 which is also much higher than other corundum. It’s used for heavy duty bonded abrasive products.
There’re two grades of Zirconia Fused Alumina by its content of Zirconium Oxide(ZrO2): ZA25 and ZA40 named by their content.
Available Sizes: 0-1mm,1-3mm,3-5mm, F8-F220 for abrasive use.
Zirconia Fused Alumina FEPA Sizes for Bonded Abrasives and Blasting(ZA25)
Chemical Composition(%)
| Items | Al2O3 | ZrO2 | TiO2 | Fe2O3 | SiO2 |
| ZA25 | 68-72 | 24-30 | ≤1.5 | ≤0.5 | ≤1.0 |
| ZA40 | 55-57 | 35-44 | ≤1.5 | ≤0.5 | ≤1.0 |
Physical Properties
| Crystal Form | Monoclinic,tetragonal system |
| Reaction with acid and alkali | no |
| Reaction with carbon | Forming carbide since 1650℃ |
| Color | Grey |
| True Density | 4.20g/cm3 |
| Bulk Density | 2.18g/cm3 |
| Moh's hardness | 9.0 |
| Knoop hardness | 1450-2000kg/cm2 |
| Melting point | 1900℃ |
| Maximum service temperature | 1700℃ |
| Specific heat capacity(cal/g.℃) | 0.2205(50-500℃) |
| Heat conductivity | 0.2718 cal/cm2.sec.℃ |
| Linear expansivity(X10-6) | 6.82(100-700℃) |
Main Applications
1. Making zircon fused alumina brick and building materials
2. Used for making bonded abrasives products,and process of grinding,sandblasting,surface treatment of metal products and other materials.
3 .With good melt erosion resistance,Zirconia fused alumina has good grinding effect on steel,iron casting,heat resistant steel and other alloy materials.
4. Zirconia fused alumina can be made for heavy duty Zirconia fused alumina grinding wheel,snagging,cutting disc,Fiber disc,grinding rails,high speed abrasive belts etc
5. Used for making coated abrasives products,
6. Used for making lapping paste,polishing wax,emery cloth,sandpaper etc
Available Sizes
0-0.5mm 0.5-1mm. 1-1.5mm 1-2mm 1-3mm 3-5mm 5-8mm etc
100F 200F 325F
F4 F5 F6 F7 F8 F10 F12 F14 F16 F20 F22 F24 F30 F36 F46 F54 F60 F70 F80 F90 F100 F120 F150 F180 F220
Contact Person: Jason Chen
Tel: 86-18603794999
