Zirconia Alumina is a premium, high-performance abrasive material made by fusing aluminum oxide (Al₂O₃) and zirconium oxide (ZrO₂) at high temperatures in an electric arc furnace. This fusion process creates a tough, durable, and self-sharpening abrasive grain with superior cutting efficiency, making it ideal for demanding grinding and finishing applications.
This abrasive is grayish-white in color, with high toughness, strength, and excellent wear resistance.
Main Applications of Zirconia Alumina
1. Bonded & Coated Abrasives
Used in grinding wheels, cutting discs, and flap discs for heavy-duty grinding and finishing.
Ideal for stainless steel, alloy steel, and high-strength metals.
2. Sandblasting & Surface Preparation
Excellent for metal cleaning, deburring, and surface texturing.
Provides high-impact strength and consistent performance.
3. Refractory Application
Used in high-temperature-resistant refractory bricks for furnaces and kilns.
Offers enhanced thermal shock resistance.
4. Polishing & Finishing
Applied in ceramic and glass polishing for superior surface smoothness.
Suitable for woodworking and automotive finishing.
Physical Properties and Chemical Composition
| Color | Specific Density | Bulk Density | Moh's hardness | Melting point | Knoop hardness |
| Grey | 4.20g/cm3 | 2.18g/cm3 | 9 | 1900℃ | 1450-2000kg/cm2 |
| GRADE | Al2O3 | ZrO2 | TiO2 | Fe2O3 | SiO2 |
| ZA25% | 72-78 | 23-25 | ≤1.5 | ≤0.5 | ≤1.0 |
| ZA40% | 55-57 | 35-44 | ≤1.5 | ≤0.5 | ≤1.0 |
| Available Sizes | 0-0.5MM 0.5-1MM 1-1.5MM 0-1MM 1-2MM 2-3MM 1-3MM 3-5MM | ||||
| 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 | |||||
Why Choose Our Zirconia Alumina Products?
ISO-Certified Production – Ensuring high-quality, consistent abrasive grains.
Customization Available – Different grit sizes, shapes, and densities upon request.
50,000 Tons Annual Production – Reliable supply for bulk purchases.
Global Export – Trusted by industries in Europe, Asia, and beyond.
