Sintered Zirconium Corundum Brick
Sintered zirconia-corundum bricks (sintered AZS) belong to the Al₂O₃-ZrO₂-SiO₂ ternary system of high-grade refractory materials. Unlike electrofused cast AZS, they rely on solid-state reaction sintering, eliminating the need for high-temperature melting and casting processes.
Main raw materials
High-purity industrial alumina, zircon fine powder, corundum clinker, trace composite mineralizers; strict control of harmful impurities such as Fe₂O₃ and Na₂O to avoid the formation of large amounts of glassy phase at high temperatures.
Mainstream grades (classified by ZrO₂ content)
AZS16: ZrO₂≈16%, Al₂O₃≈66%, low-cost general-purpose type AZS20: ZrO₂≈20%, balanced overall performance, most widely used AZS32/33: ZrO₂≈32%, high-corrosion resistant high-end type
Characteristics of Sintered zirconium corundum fire brick
• High Mechanical Strength;
• Excellent Thermal Shock Resistance;
• Excellent Corrosion Resistance;
• Acid and Alkali Corrosion Resistance.
Application of sintered zirconium corundum brick
Glass Industry (Largest Application Area)
Regenerator checker bricks, partition walls, arches, and footings
Small furnace burners, feed channels, upper part of clarifiers, and breast walls
Hot and cold alternating zones in kilns for everyday glass, photovoltaic glass, and electronic glass
Non-ferrous Metallurgical Furnaces
Aluminum smelting furnaces, copper, lead, and zinc smelting furnace linings, resisting erosion from molten metal and alkaline slag
Iron & Steel & Special High-Temperature Furnaces
Upper part of refining ladles, high-temperature zone of cement rotary kilns, zirconium calcining kilns, high-temperature zone of ceramic roller kilns
Other Industries
Petrochemical high-temperature reactors, high-temperature support bricks for refractory fibers, and electronic substrate sintering kilns
Sintered Zirconium Corundum Refractory Brick Technical Parameters
As a professional refractory bricks supplier, we provide you with detailed technical specifications for sintered zirconia corundum refractory bricks to assist you in making the right choice. The following represent our standard specifications. Additionally, we offer customized refractory brick services tailored to the specific requirements of your kiln.
| AZS-30 | AZS-33 | |
| ZrO2(%) | ≥30 | ≥33 |
| AI2O3(%) | ≥48 | ≥47 |
| Fe2O3(%) | ≤0.3 | ≤0.3 |
| SiO2(%) | ≤20 | ≤19 |
| Apparent porosity% | ≤18 | ≤17 |
| Bulk density g/cm3 | ≥3.00 | ≥3.20 |
| Cold crushing strength MPa | ≥100 | ≥100 |
| Refractoriness under load 0.6% (0.2Mpa) | ≥1690 | ≥1700 |
Sintered Zirconia Corundum Refractory Brick Price
Our wholesale refractory bricks prices are flexible and can be adjusted based on various factors, including order quantity, product specifications (size, shape), refractory rating (standard, medium, high), and delivery terms. For custom-made sintered zirconia corundum bricks (non-standard specifications or special refractory ratings), prices will be negotiated based on raw material costs, production complexity, and order quantity.
As a reliable refractory brick supplier, we are committed to providing you with the best quotes and will offer detailed quotations based on your specific order requirements to help you effectively control procurement costs.
Why Choose Ruitai Lianxin Sintered Zirconia Corundum Bricks?
Sintered zirconia corundum bricks and other high-quality refractory bricks constitute our core product line. As a specialized refractory bricks manufacturer & supplier, we are dedicated to providing global clients with optimal kiln solutions, backed by the following core advantages:
Factory Direct Sales Advantages
As a direct seller of refractory fire bricks, we can offer highly competitive prices while ensuring product quality, and control the entire process from raw materials to finished products.
Rigorous Quality Control
Our refractory brick facility features advanced production lines and a professional quality inspection team that conducts rigorous testing on every batch of products to ensure compliance with international standards.
Custom Refractory
Within our advanced refractory brick facility, we manufacture custom-sized and specially shaped sintered zirconia corundum bricks using engineering drawings, fully satisfying your unique kiln operations.
Rapid Delivery and Export-Grade Packaging
We utilize high-strength strapping bands and solid wood pallets for reinforcement, while also offering customized packaging solutions. We strictly adhere to our delivery commitments, ensuring your order is delivered on time within 20 to 30 days.
Ruitai Lianxin Refractory Brick Customer Case
Ruitai Lianxin focus on exporting high-standard refractory bricks and providing factory-direct refractory bricks to industrial clients worldwide. Our products and customized refractory fire brick solutions are widely praised globally, and we have stable, long-term partners in many countries,including Uzbekistan, Syria, and Pakistan. Ruitai Lianxin will continue to pursue mutual benefit and win-win results through in-depth cooperation with global refractory brick customers.
Ruitai Lianxin Cooperation Partners
Contact Us
As a professional refractory brick manufacturer, supplier, and factory, we offer high-quality factory-direct refractory bricks and wholesale services, and can customize kiln solutions to meet your needs. Contact us now, and our team will reach out to you as soon as possible to provide you with the best factory quote.