High Purity Refractory Corundum Bricks for Extreme Industrial Environments

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Insulation and Refractory Materials

refractory corundum brick
high purity corundum brick
corundum refractory brick factory
corundum refractory brick factory
refractory corundum brick
high purity corundum brick
corundum refractory brick factory
corundum refractory brick factory
Refractory Corundum Brick

Laurel’s refractory corundum brick series delivers exceptional performance in the most demanding thermal and chemical environments. Produced in our advanced corundum refractory brick factory, these products are made from high purity corundum brick materials—primarily fused α-Al₂O₃—to ensure unmatched structural durability and corrosion resistance.

Ideal for both static and dynamic furnace zones, each high purity corundum brick maintains dimensional integrity and thermal stability under prolonged exposure to temperatures above 1800°C.
From our state-of-the-art corundum refractory brick factory, Laurel delivers high purity corundum brick products that set the standard for refractory corundum brick technology—offering consistent, long-term performance in the harshest thermal processes.


Product Details


Applications

Burner blocks and air ducts in cement kilns

Reaction chambers in ammonia, hydrogen, or syngas production

Glass furnace crowns and superstructures

High-load zones in copper and aluminum refining

Incinerator linings exposed to aggressive slags and thermal flux


Table parameters

Item

Data

GY99A

GY99B

GY98

GY95

Al2O3  

%

≥99

≥99

≥98

≥95

SiO2  

%

≤0.15

≤0.2

≤0.5

≤0.5

Fe2O3  

%

≤0.1

≤0.15

≤0.2

≤0.3

Apparent Porosity

%

≤19

≤19

≤19

≤20

Bulk Density

g/cm3

≥3.20

≥3.15

≥3.15

≥3.1

Cold Crushing Strength

MPa

≥90

≥85

≥83

≥80

Refractoriness Under Load (0.2MPa)

≥1700

PLC (1500℃×2h)

 % 

±0.2

±0.3


Features

Features

Ultra-Pure α-Corundum Composition

Manufactured with ≥95–99% Al₂O₃, every refractory corundum brick delivers high refractoriness and chemical inertness—resisting reactions with aggressive slags, alkali vapors, and acidic gases.

Dense Microstructure for Enhanced Lifespan

Our corundum refractory brick factory utilizes advanced pressing and sintering techniques to create ultra-low porosity bricks. This prevents slag penetration and reduces structural weakening caused by thermal cycling.

Stable Under Extreme Load and Heat

With cold crushing strength exceeding 80 MPa and refractoriness above 1800°C, these high purity corundum bricks perform reliably in applications demanding high mechanical and thermal endurance.

Custom Machining and Dimensional Precision

Each refractory corundum brick can be customized for complex refractory lining systems in petrochemical reactors, cement kilns, or glass furnaces—supporting precision installations with tight tolerances.


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contact us

Your satisfaction is our top priority. Whether you have questions, need support, or want to share feedback, our dedicated team is ready to assist you every step of the way.

+86-15264257623

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info@laurelrefractory.com

+86-532-80829560