Xintai Zircon Refractory Bricks are high-performance refractory materials designed for extreme high-temperature applications. Composed primarily of zircon (ZrSiO₄) and mullite, these bricks offer excellent thermal stability, chemical resistance, and mechanical strength. With ZrSiO₄ content ranging from 15% to 65% and a bulk density of 2.7–3.7 g/cm³, they are ideal for furnaces, kilns, and industrial lining applications where durability and long service life are critical. Available in standard and custom sizes, Xintai Zircon Bricks meet the demands of the glass, steel, and chemical industries.
Technical Specifications
Item | Dense Zircon Brick | Zircon Brick | Zirconium-Corundum Brick | Zirconium-Mullite Brick | Semi-Zircon Brick |
---|---|---|---|---|---|
ZrO₂ % | ≥65 | ≥60 | ≥30 | ≥18 | 15–20 |
Al₂O₃ % | – | – | ≥45 | ≥55 | 50–60 |
SiO₂ % | – | ≤38 | ≤25 | ≤25 | ≤20 |
Fe₂O₃ % | ≤0.3 | ≤0.5 | ≤0.5 | 1.2 | 1.2 |
Apparent Porosity % | ≤18 | ≤22 | ≤20 | ≤17 | ≤20 |
Bulk Density g/cm³ | ≥3.7 | ≥3.5 | ≥3.2 | ≥2.7 | ≥2.7 |
Cold Compressive Strength MPa | ≥100 | ≥100 | ≥100 | ≥100 | ≥100 |
Refractoriness Under Load °C | ≥1650 | ≥1620 | ≥1650 | ≥1650 | 1550 |
Key Features
High Thermal Stability: Suitable for temperatures up to 1650°C under load.
Excellent Chemical Resistance: Resistant to molten glass, slag, and metal corrosion.
High Mechanical Strength: Cold crushing strength ≥100 MPa ensures durability in high-load environments.
Low Thermal Conductivity: Reduces heat loss and improves energy efficiency.
Customizable Sizes: Available in standard and special sizes to meet specific project requirements.
Typical Applications
Glass melting furnaces and kilns
Steel and non-ferrous metal furnaces
High-temperature chemical reactors
Cement kilns and rotary kilns
Refractory linings in foundry and ceramics industries
Production Details
Xintai Zircon Refractory Bricks are produced using high-purity raw materials, advanced mixing, molding, and firing technologies. Each batch undergoes rigorous quality control to ensure uniform density, strength, and thermal performance. The production process ensures minimal impurities and long-lasting service life for industrial applications.



Packing and Shipping Details
Packing: Bricks are securely stacked on pallets, wrapped with industrial-grade plastic, and reinforced with steel straps to prevent damage during transport.
Shipping: Delivery is available worldwide via sea, air, or land transport. Typical lead time is 15–30 working days, depending on order quantity and destination.
Customization: Custom packaging solutions are available for special projects or sensitive shipments.



Frequently Asked Questions (FAQ)
Q1: What is the maximum service temperature of Zircon Refractory Bricks?
The bricks can withstand temperatures up to 1650°C under load, depending on the specific composition.
Q2: Can I order custom sizes?
Yes, Xintai offers custom brick sizes to suit specific furnace and kiln designs.
Q3. How long is the typical delivery time?
Standard delivery time is 15–30 working days after order confirmation.
Q4: What industries commonly use Zircon Bricks?
They are widely used in glass, steel, non-ferrous metals, chemical, cement, and ceramics industries.
Q5: How are the bricks packed for shipment?
Bricks are stacked on pallets, wrapped in industrial plastic, and secured with steel straps to prevent damage during transportation.