Refractory Corundum Brick

Refractory Corundum Brick

Details
Refractory corundum brick is an ultra-premium refractory material made primarily from corundum, which has an aluminum oxide (Al2O3) content of over 90%. The main mineral phase of corundum bricks is α-Al2O3 (corundum), with an Al2O3 content typically exceeding 90%, and sometimes even reaching 99% or higher.belonging to the category of special refractory materials with excellent high-temperature performance,high strength,Outstanding Abrasion Resistance and chemical stability. It widely used in critical parts of industries with extremely demanding refractory material requirements:such as Blast furnace tuyeres and tapholes refractory materials, Ladle and tundish linings,Long nozzles and submerged entry nozzles for continuous casting, High-temperature section lining bricks for heating furnaces,Copper and aluminum smelting furnace linings,Zinc distillation furnaces, lead blast furnace bricks and so on.
Category
Corundum Brick
 
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Description
Technical Parameters

Shandong Luming New Materials Technology Co., Ltd. is one of the leading manufacturers and suppliers of refractory corundum brick in China. We have world-leading production equipment and strong manufacturing capabilities. Please feel free to buy premium refractory corundum brick at competitive price from our factory.

 

Refractory corundum brick is high-alumina refractory brick with a primary component of corundum (Al₂O₃ content typically ≥90%), belonging to the premium category of high-alumina refractories. The main mineral phase, α-Al₂O₃, has an extremely high melting point (approximately 2050°C) and excellent chemical stability, making corundum bricks suitable for ultra-high-temperature and highly corrosive environments. Corundum bricks exhibit exceptional refractoriness, superior erosion resistance, and outstanding mechanical strength, making them the preferred refractory solution for extreme conditions in metallurgy, chemicals, glass, and other industries.

Below is details:

 

Technical Data of Corundum Refractory Brick

 

 

Item

Corundum refractory brick

C-99

Al2O3, ≥%

99

Fe2O3, ≤%

0.1

Bulk Density, ≥g/cm³

3.2

Apparent Porosity ,≤%

16

Cold crushing strength, ≥Mpa

100

0.2Mpa Refractoriness under load, ≥℃

1700

 

Item

Resintering AZS brick

AZS-16

AZS-20

AZS-32

ZrO2, ≥%

16

20

32

Fe2O3, ≤%

0.5

0.5

0.5

Bulk Density, ≥g/cm³

2.7

2.85

3.1

Apparent Porosity ,≤%

18

18

18

Compressive strength, ≥Mpa

70

80

80

0.2Mpa Refractoriness under load, ≥℃

1580

1630

1630

20
21
22
23
24
26

 

Performance Characteristics

 

 

Corundum bricks exhibit a range of outstanding properties, allowing them to perform exceptionally well in extreme high-temperature environments:

Excellent High-Temperature Performance

Possesses extremely high refractoriness and refractoriness under load, capable of long-term use above 1800℃.some even exceeding 2000°C, making them one of the most refractory materials available.

Excellent High-Temperature Strength

Retains very high mechanical and compressive strength (80-150Mpa) at elevated temperatures, resisting creep.High flexural strength, suitable for high mechanical stress.

Good Corrosion Resistance

Exceptional resistance to acidic, alkaline, and slag erosion, ideal for highly corrosive environments (e.g., glass melting furnaces or gasifiers).Strong resistance to penetration by high-temperature gases and molten materials

Outstanding Abrasion Resistance

Corundum itself has extremely high hardness (Mohs hardness of 9, second only to diamond), making corundum bricks highly resistant to wear and erosion.

Good High-Temperature Volume Stability

Shows minimal dimensional changes at high temperatures, resisting shrinkage or expansion, which helps maintain lining integrity.

Low Apparent Porosity

Especially microporous corundum bricks, which have extremely low porosity, effectively preventing the penetration of melts and gases.

 

Application Areas

 

 

Due to its outstanding performance, corundum refractory brick is widely used in critical parts of industries with extremely demanding refractory material requirements:

1.Iron and Steel Industry:

1).Blast Furnaces: Hearth, bosh, tuyeres, tapholes, slag holes, high-temperature gas pipelines,and other critical areas, especially microporous corundum bricks for ceramic cups due to their strong impermeability.

2).Hot Blast Stoves: Combustion chambers, upper checker bricks, enduring high temperatures and chemical attack.

3).Steel Ladles: Permanent linings, permeable bricks, well blocks, slag lines, resisting molten slag erosion and scouring.

4).Continuous Casting: Submerged nozzles, long nozzles.

5).Working layers of electric arc furnaces,continuous casting tundishes and tundish linings.

6).High-temperature section lining bricks for heating furnaces

2.Non-Ferrous Metals Industry:

1).Smelting Furnaces: Molten pools, furnace bottoms, walls, roofs of copper, lead, zinc, and other non-ferrous metal smelting furnaces. Chrome-corundum bricks perform exceptionally well in resisting molten non-ferrous metal corrosion.

2).Aluminum Electrolytic Cells: Cell linings, side wall bricks, resisting molten electrolyte corrosion.

3.Glass Industry:

1).Glass Melting Furnaces: Melting tanks, sidewalls, bottoms ,throat, Forehearth, feeder channels, and other critical parts,resisting molten glass erosion

2).Critical areas in float glass production lines.

4.Petrochemical Industry:

1).Gasifiers, carbon black reactors, and pyrolysis furnaces: Components subjected to high temperatures, high pressure, chemical corrosion, and abrasion.

2).Refractory linings for petroleum cracking furnaces, ammonia synthesis converters, Reformer furnace linings

3).Refractory materials for ethylene cracking furnaces

5.Ceramic Industry:

1).Linings and kiln furniture in high-temperature ceramic kilns.

2).High-temperature reactors for advanced ceramics.

6.Cement rotary kiln burning zones

7.Thermal power plant boiler linings

8.Waste Incinerators: Grates, furnace walls, resisting high-temperature corrosive atmospheres and abrasion.

9.Industrial electric furnaces, blast furnace pulverized coal injection pipes,High-temperature laboratory equipment and so on.

 

Packaging and Shipping of Refractory Corundum Brick

 

 

1.Packed on wooden pallets with moisture-proof film to prevent damage.
2.Packed on wooden box.
3.Keep in dry, ventilated areas.

 

Our Company

 

 

07
16
17
25

 

Why Choose Us?

 

 

1

We are a modern integrated enterprise specializing in refractory materials, combining R&D, production, design, construction and technical services. Our business covers development, manufacturing and sales of refractory materials and insulation material

2

Our engineers will recommend right bricks for you based on:

Operating temperature → Determines Al₂O₃ content

Chemical environment → Corrosion resistance grade

Mechanical load → Density & strength requirements

3

Free samples to be provided.

4

Within in 8 hours to respond your inquiry.

5

If you receive defective products, We guarantee: 24-hour response, Solution within 48 hours and Replacement/refund options.

6

Our company supplies a complete range and type of Refractory brick, including:

Standard to high-grade products (Al2O3: 48%-99%)

Special-function types (spalling-resistant, low-creep, microporous, etc.)

Custom-engineered solutions for specific applications

 

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We specialize in the design, production, and installation of refractory materials for industrial kilns.
Customized refractory solutions are developed according to the actual operating conditions of
each kiln to maximize service life and operational efficiency.

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