AZ25 Fused Alumina Zirconia – Premium Abrasive for High-Performance Grinding
Product Overview
AZ25 Fused Alumina Zirconia is a high-performance abrasive grain, produced by fusing high-purity alumina (Al₂O₃) and zirconia (ZrO₂) in an electric arc furnace at 2000°C. The result is a tough and durable material with excellent wear resistance, toughness, and thermal stability.
AZ25 offers superior performance in heavy-duty bonded abrasives, cut-off wheels, and high-pressure grinding applications, making it an industry-preferred material for steel conditioning, rail grinding, and heavy industrial use.
Types of AZ25 Fused Alumina Zirconia
AZ25 is available in two specialized variations to suit different grinding applications:
🔹 AZF25 – A dense and durable material, ideal for high-pressure grinding in bonded abrasives.
🔹 AZS25 – A tough, blocky-shaped material optimized for heavy-duty grinding applications, especially in steel conditioning and hot-cutting operations.
Key Features & Benefits
✅ High Hardness & Superior Wear Resistance – Ensures extended tool life and reduced wear during grinding.
✅ High Density & Toughness – Delivers aggressive material removal and excellent impact resistance.
✅ Excellent Thermal Stability – Withstands extreme temperatures up to 1950°C, preventing structural degradation.
✅ Optimized Particle Size Distribution – Ensures smooth cutting action and uniform surface finishing.
✅ Low Iron Content – Prevents contamination in sensitive applications, such as precision grinding.
✅ Corrosion & Oxidation Resistant – Works efficiently in acidic and high-temperature environments.
✅ Eco-Friendly & Cost-Effective – Reduces abrasive consumption, lowering overall operational costs.
Chemical & Physical Properties
| Component | Al₂O₃ | ZrO₂ | SiO₂ | Fe₂O₃ | Na₂O | TiO₂ |
|---|---|---|---|---|---|---|
| Content (%) | 75% | 24% | 0.20% | 0.20% | 0.08% | 0.15% |
Additional Physical Properties
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Absolute Density: 4.35 g/cm³
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Knoop Hardness: 1780 kg/mm²
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Color: Dark Brown/Gray
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Melting Point: 1950°C
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Crystal Structure: Monoclinic & Corundum
Applications of AZ25 Fused Alumina Zirconia
AZ25 is widely used in industries that require high-performance abrasives, including metallurgy, manufacturing, mining, and surface preparation.
1️⃣ Bonded Abrasives
AZ25 is a critical material in the production of bonded abrasives, including:
✔ Large-Diameter Cut-Off Wheels – Used in heavy industrial cutting.
✔ Grinding Discs & Hot-Pressed Wheels – Designed for rail grinding and foundry applications.
✔ Heavy-Duty Coated Abrasives – Ideal for precision grinding and surface finishing.
2️⃣ Steel & Foundry Industry
AZ25 is extensively used for:
✔ Steel Conditioning – Enhances efficiency in high-pressure grinding.
✔ Hot-Cutting Operations – Performs well under extreme heat and high-stress conditions.
✔ Blast Cleaning & Surface Preparation – Removes scales, rust, and surface contaminants efficiently.
3️⃣ Sandblasting & Shot Peening
✔ Used in high-impact blasting applications where abrasion resistance and minimal material contamination are critical.
✔ Ideal for removing coatings, corrosion, and scaling in metal and stone industries.
4️⃣ Refractory & Ceramic Applications
✔ Serves as a key material for manufacturing high-strength refractory bricks, ceramic coatings, and wear-resistant linings.
Available Grit Sizes
AZ25 is available in a wide range of FEPA grit sizes, from coarse (F4) to fine (F220), making it suitable for both rough and precision grinding.
✔ Coarse Grits (F4 – F24) → Best for heavy-duty grinding & material removal.
✔ Medium Grits (F30 – F60) → Used for smoother surface finishing.
✔ Fine Grits (F70 – F220) → Ideal for precision grinding & polishing.
📌 Custom grain sizes are available upon request!
Comparison with Other Abrasive Materials
| Property | AZ25 Fused Alumina Zirconia | Brown Fused Alumina (BFA) | White Fused Alumina (WFA) | Silicon Carbide (SiC) |
|---|---|---|---|---|
| Hardness | ⭐⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐⭐⭐ | ⭐⭐⭐⭐⭐ |
| Toughness | ⭐⭐⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐ | ⭐⭐ |
| Thermal Stability | ⭐⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐⭐⭐ |
| Wear Resistance | ⭐⭐⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐⭐⭐ | ⭐⭐⭐⭐ |
| Grain Shape | Blocky & Tough | Angular & Brittle | Friable | Sharp & Friable |
📌 AZ25 offers the perfect balance of hardness, toughness, and durability, making it superior to traditional abrasives!
Why Choose AZ25 Fused Alumina Zirconia?
🔹 Industry-Leading Durability – Exceptional toughness ensures extended abrasive life.
🔹 Higher Cutting Performance – Delivers superior material removal rates.
🔹 Cost-Effective Solution – Reduces downtime and abrasive replacement costs.
🔹 Wide-Ranging Applications – Suitable for grinding, cutting, polishing, and sandblasting.
📢 Order Now!
📌 Looking for a high-performance abrasive for your grinding and surface preparation needs? AZ25 Fused Alumina Zirconia is your best choice!
📩 Contact Us Today for More Details!
💬 Email: info@niceabrasive.com
🌐 Website: www.niceabrasive.com
📞 WhatsApp: +86-19070858072