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Zirconium Brick

Zirconium Brick

Zircon bricks, renowned for their exceptional properties, stand as a testament to the convergence of advanced materials and precise manufacturing techniques. Derived from stable zircon sand, these bricks exhibit an impressive array of strengths, including robust mechanical resilience, unparalleled resistance to thermal shocks, and a commendable ability to withstand corrosion. Their unique composition grants them a high refractoriness under load and inertness, combined with a density that underscores their quality.

Zirconium Brick

These bricks have carved out a pivotal role in various industrial sectors, becoming indispensable components in glass furnaces, non-ferrous metal smelting furnaces, and pure steel furnaces. With the use of high-quality zirconia and zirconium corundum clinker raw materials, Zirconia Bricks embody a synthesis of ceramic and chemical bonding, culminating in products that defy pressure and temperature extremes.

Likewise, Zircon Mullite Bricks leverage the synergy between mullite sand and zircon powder, resulting in bricks of elevated density, strength, and resilience. These bricks find purpose in enduring environments, such as orifice rings, tank structures, and glass production, where thermal shock resistance and slag resistance are paramount.

Notably, Zircon Corundum Bricks bring together a blend of materials, including a-Al2O3 and ZrO2, with a meticulous manufacturing process that ensures outstanding quality. Versatile and reliable, they serve as linchpins in glass melting furnaces, excelling in both direct glass contact and structural roles. Their ISO certification attests to their high purity, while their superior attributes – from strength and thermal shock resistance to erosion and thermal conductivity – underscore their indispensability across industrial furnaces.

In the grand tapestry of refractory materials, Zircon bricks shine as exemplars of engineering prowess and functional excellence, indispensable to the heart of high-temperature industrial processes.

Zirconia Corundum Brick
The parameter of Zirconia corundum brick 
ItemAZS-33AZS-36AZS-41
Al2O3%standardstandardstandard
ZrO2%≥33≥36≥41
SiO2%≤16≤14≤13
Fe2O3+TiO2%≤0.3≤0.3≤0.3
Bulk density,g/cm33.5-3.63.753.9
Cold Crushing strength MPa350350350
Thermal expansioncoefficient(1000℃)0.800.800.80
Exudation temperature of glass         phase°C140014001400
Baddeleyite323540
Glass phase211817
α-corundum474743
Zirconia Mullite Brick
ItemZM-17ZM-20 (Zirmul)ZM-25 (Vista)ZM-30ZM-11
Chemical compositionAl2O3≥70≥59≥57≥47≥72
ZrO2≥17≥19.5≥25.5≥30≥11
SiO2≤12≤20≤14.5≤20≤12
Fe2O3≤0.5≤0.5≤0.5≤0.3≤0.5
Apparent Porosity%≤17≤17≤17≤18≤17
Bulk Density g/cm3≥3.15≥2.95≥3.15≥3.10≥3.1
Cold Crushing Strength Mpa≥90≥100≥120≥100≥90
0.1Mpa Refractoriness Under Load T0.6 °C≥1650≥1650≥1650≥1650≥1630
Permanent Linear Change On Reheating(%)1500°CX2h±0.3±0.3±0.3±0.3±0.3
20-1000°C Thermal Expansion % (x 10-6)0-0.60-0.60-0.60-0.60-0.6
Thermal Conductivity (Average800°C) W / (M.K)≤ 2.19≤ 2.19≤ 2.1≤ 2.1≤ 2.19
Pyrometric Cone Equivalent °C SK3131313131
Zircon Brick
ItemDense zircon brickZircon brickzirconium -corundum brickZirconium -mullite brickSemi-zircon brick
ZrO2 %≥65≥60≥30≥18≥15—20
Al2O3 %≥45≥55≥50—60
SiO2 %≤38≤25≤25≤20
Fe2O3 %≤0.3≤0.5≤0.51.21.2
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≥1650155
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