Kiln AZS 33# 36# 41# Brick Fused Zirconia Corundum Brick High Glass Corrosion Resistant
Leadsun AZS Brick (Fused Zirconia Corundum Brick) is manufactured by melting high-purity alumina powder and zircon sand (containing ~65% ZrO₂ and ~34% SiO₂) in an electric arc furnace, followed by casting into molds and controlled cooling. This oxidation fused-cast process results in a dense, homogeneous structure with exceptional resistance to glass corrosion, thermal shock, and chemical erosion. It is widely used in glass furnaces, non-ferrous metal smelting furnaces, and pure steel furnaces.
| ITEM | SPEC | |||
|---|---|---|---|---|
| AZS-33# ER 1681 |
AZS-36# ER 1685 |
AZS-41# ER 1711 |
||
| Chemical Composition |
Al2O3 | ≥50.00 | ≥49.00 | ≥45.00 |
| ZrO2 | ≥32.50 | ≥35.50 | ≥40.50 | |
| SiO2 | ≤15.50 | ≤13.50 | ≤13.00 | |
| Na2O+K2O | ≤1.30 | ≤1.35 | ≤1.30 | |
| Bulk density g/cm3 | ≥3.75 | ≥3.85 | ≥4.00 | |
| Apparent Porosity % | ≤1.2 | ≤1.0 | ≤1.2 | |
| Cold Crushing Strength Mpa | ≥300 | ≥300 | ≥300 | |
| Exudation Temperature of Glass Phase | ≥1400 | ≥1400 | ≥1410 | |
| Bubble Separation Ratio(1300°C×10h) | ≤1.2 | ≤1.0 | ≤1.0 | |
| Anti-corrosion rate of glass liquid 1500°C×36h (mm/24h)% |
≤1.4 | ≤1.3 | ≤1.2 | |
| Apparent density (g/cm3) |
PT(RN RC N) | ≥3.50 | ≥3.50 | ≥3.70 |
| ZWS(RR EVF EC ENC) | ≥3.65 | ≥3.70 | ≥3.90 | |
| WS( RT VF EPIC FVP DCL) | ≥3.75 | ≥3.8 | ≥4.00 | |
- Excellent Glass Corrosion Resistance: Superior resistance to molten glass and chemical attack.
- High Thermal Shock Stability: Maintains integrity under rapid temperature changes.
- High Refractoriness Under Load: Excellent mechanical strength at elevated temperatures.
- Low Porosity & High Density: Dense structure minimizes penetration and erosion.
- Low Exudation of Glass Phase: Reduces contamination in glass melting processes.
- Good Wear & Alkali Resistance: Suitable for harsh industrial environments.
- Certified Quality: Manufactured with approved materials and processes, free from electrode pollution.
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AZS-33 (ER 1681):
Most widely used in glass kilns. Suitable for walls, bottoms, superstructures, and feeding channels.
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AZS-36 (ER 1685):
Better corrosion resistance and performance with low pollution characteristics. Used in key areas such as melting pool walls near the hot spot of glass furnaces.
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AZS-41 (ER 1711):
Best corrosion resistance, performance, and lowest contamination of glass solution. Ideal for critical parts like pool walls, feeding mouth corners, fluid holes, kiln bars, pool bottom bubbling, and all-electric melting furnaces.
- Standard shapes and irregular/custom shapes
- Blocks, bricks, and special designs as per furnace layout
- Sizes and thicknesses tailored to application requirements
- Glass Industry: Glass tank furnaces, regenerators, throat areas, doghouse corners, paving blocks.
- Non-Ferrous Metallurgy: Smelting furnaces for copper, aluminum, zinc, and lead.
- Steel Industry: Ladles, tundishes, refining furnaces.
- Ceramic & Cement: High-temperature kiln linings, burner blocks.
- Chemical & Petrochemical: Reactors, reformers, incinerators.
- Manufactured in compliance with international standards
- All certificates approved for material and performance
- Electrode-free fusion casting technology ensures purity and consistency
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