AZS-41 Bricks
LAR’s AZS-41 Bricks are high-grade refractory materials used in demanding glass furnace environments. Manufacturers produce AZS-41 corundum Bricks through electro-fusion casting technology. This process forms a very dense and uniform crystal structure.AZS-41 Bricks belong to the advanced azs-bricks category. The material contains alumina (Al₂O₃), zirconia (ZrO₂), and silica (SiO₂). The “41” grade indicates a higher zirconia content compared with AZS-33 and AZS-36. This composition significantly improves corrosion resistance.
LAR’s AZS-41 corundum Bricks are a premium type of corundum brick. The material performs well in direct contact with molten glass. The structure resists erosion and maintains stability under extreme conditions.High zirconia content improves chemical stability and reduces glass phase penetration. The dense fused cast structure also helps extend furnace lining service life.
LAR’s AZS-41 bricks offer good thermal stability and strong mechanical strength during continuous furnace operation. The products maintain stable performance under severe thermal and chemical conditions.AZS-41 bricks are widely used in glass tank furnaces, working ends, throat areas, and superstructure sections. The products help improve furnace efficiency and reduce maintenance frequency.
Product Overview
AZS-41 bricks are high-performance fused cast refractory materials mainly composed of alumina (Al₂O₃), zirconia (ZrO₂), and silica (SiO₂). These bricks are specially developed for high-temperature glass furnace applications where excellent corrosion resistance, low glass contamination, and long service life are required.
AZS-41 corundum bricks feature a dense crystal structure that provides strong resistance to molten glass erosion, chemical attack, and high-temperature deformation. The zirconia phase improves corrosion resistance, while the alumina and corundum components enhance mechanical strength and structural stability during continuous furnace operation.
AZS-41 bricks are widely used in glass melting furnaces, including sidewalls, bottom blocks, feeder channels, and other areas exposed to direct contact with molten glass. Their excellent thermal stability and low bubble generation characteristics make them suitable for demanding glass production environments.
LAR supplies customized AZS-41 corundum bricks according to furnace design, operating temperature, glass composition, and installation requirements. With precise manufacturing processes and strict quality control, LAR provides reliable refractory solutions that help customers reduce furnace maintenance, extend lining service life, and improve production efficiency in high-temperature glass industries.
Key Features
Superior Corrosion Resistance
AZS-41 Bricks provide excellent resistance to molten glass and chemical attack. The high zirconia content enhances durability. The material performs well in the most aggressive furnace zones.
Excellent High Temperature Stability
AZS-41 corundum Bricks maintain stable properties at very high temperatures. The material resists deformation during continuous operation. The structure supports long service life.
Strong Thermal Shock Resistance
The material tolerates rapid temperature changes. The structure reduces the risk of cracking. The product performs reliably during heating and cooling cycles.
High Mechanical Strength
Each corundum brick provides strong load-bearing capacity. The dense fused structure supports heavy-duty applications. The product maintains integrity under mechanical stress.
Extended Service Life
AZS-41 Bricks resist wear and chemical erosion better than lower-grade azs-bricks. The product lasts longer in harsh environments. Users benefit from reduced downtime and maintenance costs.
Typical Product Types
Manufacturers provide several types of azs-bricks for different furnace requirements:
· Standard AZS-41 Bricks
· AZS-41 corundum Bricks for high-corrosion zones
· Fused cast corundum brick blocks
· Customized shapes for specific furnace sections
Each type matches specific operating conditions. Suppliers adjust composition and structure based on application needs.
Technical Characteristics
Item | Unit | Standard AZS-41 Brick | Dense AZS-41 Brick | Fused Cast AZS-41 Brick |
ZrO₂ Content | % | ≥40 | ≥41 | ≥41 |
Al₂O₃ Content | % | 48–50 | 48–49 | 47–49 |
SiO₂ Content | % | 10–13 | 9–12 | 9–11 |
Bulk Density | g/cm³ | 3.75–3.90 | 3.85–4.00 | 3.90–4.05 |
Apparent Porosity | % | ≤2 | ≤1.5 | ≤1 |
Cold Crushing Strength | MPa | ≥300 | ≥320 | ≥350 |
Refractoriness Under Load | °C | ≥1700 | ≥1700 | ≥1700 |
Glass Phase Exudation | % | ≤1.5 | ≤1.3 | ≤1.0 |
Thermal Expansion Coefficient | ×10⁻⁶/K | 4.5–5.5 | 4.5–5.3 | 4.3–5.2 |
Max Service Temperature | °C | 1700 | 1700 | 1700 |
Technical parameters vary depending on product grade and application. Manufacturers provide detailed data for specific projects.
Applications
AZS-41 Bricks are widely used in the most demanding glass industry applications:
· Glass Industry – melting tanks and hot spots
· Float Glass Furnaces – severe corrosion zones
· Container Glass Furnaces – critical contact areas
· Special Glass Production – high-purity and aggressive environments
AZS-41 corundum Bricks improve furnace lifespan and product consistency. The material supports stable and efficient production.
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Advantages Compared To Others
Type | Advantages | Application |
AZS-41 Bricks | Highest corrosion resistance, longest service life | Extreme furnace conditions |
AZS-36 Bricks | Balanced durability and cost | High-demand areas |
AZS-33 Bricks | Cost-effective, stable | General furnace zones |
AZS-41 Bricks provide the best performance among standard azs-bricks. The material is suitable for the most critical zones.
Customization & Manufacturing
A professional azs-bricks supplier offers customized AZS-41 Bricks solutions. The manufacturer adjusts the product based on:
· Furnace design and operating temperature
· Glass composition and chemical conditions
· Required size and geometry
· Performance requirements
The electro-fusion casting process ensures high consistency and precise dimensions. The product meets the strict requirements of modern glass furnace systems.
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