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High-Quality Silicon Carbide Bricks (SiC Bricks) from China Suppliers | Reliable Factory for Industrial Furnaces
Core Advantages
Outstanding High-Temperature Resistance
Capable of withstanding continuous operating temperatures up to 1600°C and short-term temperatures of 1700°C, maintaining structural integrity without deformation even in extreme high-heat environments, which far outperforms traditional refractory bricks.
Excellent Wear & Abrasion Resistance
Featuring high hardness and a dense microstructure, it effectively resists material friction and impact, reducing wear loss significantly and extending service life compared to conventional refractory products.
Strong Corrosion Resistance
Resists erosion from acidic, alkaline and other corrosive media, suitable for harsh working conditions in chemical, metallurgical and other industries.
High Mechanical Strength
Good compressive strength and flexural strength, not easy to crack or break during transportation and use, ensuring safe and stable operation of equipment.
Low Thermal Expansion Coefficient
Small volume change under temperature fluctuation, avoiding structural damage caused by thermal shock, improving the reliability of furnace linings and other equipment.
Product Parameters
| Item | SiC Brick | Si₃N₄-SiC Brick | |
| SiC % | ≥88 | ≥80 | ≥72 |
| Si₃N₄ % | / | / | ≥18 |
| Bulk Density (g/cm³) | ≥2.60 | ≥2.58 | 2.60–2.70 |
| Apparent Porosity (%) | ≤17 | ≤18 | ≤16 |
| Thermal Conductivity (1200°C) w/(m·k) | 13.2 | 12 | / |
| Cold Crushing Strength (MPa) | ≥110 | ≥100 | ≥180 |
| Thermal Shock Stability (1100°C cooling) times | ≥50 | ≥40 | ≥30 |
| Refractoriness Under Load (0.2MPa, 0.6%) | 1700 | 1700 | / |
Detailed Application Scenarios
1
Metallurgical Industry
Widely applied in blast furnace hearths, tuyere zones, converter linings, and electric arc furnace sidewalls & bottoms. It is suitable for the smelting of iron, steel, and non-ferrous metals (copper, aluminum, zinc, etc.), providing reliable resistance to high temperatures, wear, and molten metal erosion.
2
Ceramic Industry
Used as kiln furniture (roller bars, saggers) and kiln linings in ceramic firing equipment (tunnel kilns, shuttle kilns). It can endure high-temperature baking and frequent thermal cycles, ensuring consistent quality of ceramic products during production.
3
Chemical Industry
Ideal for linings of chemical reactors, acid-alkali storage tanks, flue gas treatment systems, and catalyst supports. It resists corrosion from various chemical media, ensuring long-term safe and stable operation of chemical equipment.
4
Energy Industry
Applied in linings of coal gasifiers, biomass pyrolysis furnaces, and waste incinerators. It adapts to harsh working conditions (high temperature, high pressure, dust wear), enhancing the operational efficiency and service life of energy-related equipment.
Conclusion
Contact us now for a quote and experience the difference of working with the best in the business.
Frequently Asked Questions
What is the maximum operating temperature of SiC bricks?
SiC bricks can withstand continuous operating temperatures up to 1600°C and short-term peak temperatures of 1700°C, making them suitable for the most demanding high-temperature industrial applications.
What is the difference between SiC Brick and Si₃N₄-SiC Brick?
SiC Brick offers higher SiC content (≥88%) and superior thermal conductivity, while Si₃N₄-SiC Brick incorporates silicon nitride (≥18%) to achieve higher cold crushing strength (≥180 MPa) and enhanced resistance to oxidation and corrosion, making it ideal for more aggressive chemical environments.
In which industries are SiC refractory bricks most commonly used?
SiC refractory bricks are widely used across the metallurgical, ceramic, chemical, and energy industries. Common applications include blast furnace linings, kiln furniture, chemical reactor linings, coal gasifiers, and waste incinerators.
How does the thermal shock resistance of SiC bricks compare to traditional refractory bricks?
SiC bricks demonstrate excellent thermal shock stability, withstanding ≥50 cycles at 1100°C water-cooling conditions. This significantly outperforms many traditional refractory bricks, reducing the risk of cracking or spalling during rapid temperature changes.
Can SiC bricks resist both acidic and alkaline corrosion?
Yes. SiC bricks exhibit strong resistance to both acidic and alkaline corrosive media. This makes them an ideal choice for chemical reactors, acid-alkali storage tanks, and flue gas treatment systems where exposure to aggressive chemical environments is common.
How can I get a customized quote for SiC refractory bricks?
You can submit your inquiry directly through the contact form above. Please provide details such as the intended application, required dimensions, quantity, and any specific performance requirements. Our team will respond promptly with a tailored solution and competitive pricing.