Kiln Furniture Refractory Brick Silicon Carbide Firebrick

PRODUCT DESCRIPTION
Silicon carbide refractory brick represents a premium category of kiln furniture materials, available in three specialized formulations to address distinct operational demands. Each silicon carbide firebrick variant possesses unique characteristics engineered for specific industrial applications, ensuring optimal performance under varying service conditions.
(1) Silicon Nitride Bonded Silicon Carbide Firebrick (NSiC)
Features: Excellent high-temperature strength, superior oxidation resistance
Application: NSiC firebrick is applied for general high-temperature kiln furniture
(2) Reaction Bonded Silicon Carbide Refractory Brick (RBSiC)
Features: High density (porosity <0.1%), exceptional resistance to molten metal corrosion (zinc, aluminum)
Application: RBSiC firebrick is perfect for metal processing and highly corrosive industrial environments
(3) Recrystallized Silicon Carbide Firebrick (RSiC)
Features: Ultra-high purity (SiC >99%), extreme temperature resistance (1800°C)
Application: RSiC firebrick is essential for precision ceramic inspection tools and semiconductor heat treatment furnaces.
SELECTION SUGGESTION
Maximum Temperature/Ultra-High Purity Requirements → Recrystallized silicon carbide firebrick
Molten Metal Resistance → Reaction sintered silicon carbide firebrick
Cost-Effective Wear-Resistant Solution → NSiC refractory brick
MAIN PARAMETER
High Temperature Kiln Equipment Industry | RSiC | NSiC | RBSiC |
SiC Content (%) | ≥99% | 75% | ≥90% |
Si3N4 Content (%) | / | ≥25% | 5%-10% |
Bulk Density (g/cm3) | 2.65~2.75 | 2.73~2.83 | 3.02~3.07 |
Apparent Porosity (%) | <17 | <12 | <0.1 |
Room temperature strength (MPa) | 90~100 | 160~170 | 260~270 |
Strengthat 1300℃(MPa) | 100-110 | 170~180 | 280~290 |
Elasticity modulus at 20℃ | 240 | 250 | 330 |
Thermal Conductivity At 1200℃(W/mk) | 36 | 20 | 45 |
Thermal Expansion x10-6/℃ | 4.6 | 4.7 | 4.5 |
Max Using Temperature(℃) | 1650℃ | 1450℃ | 1350℃ |
Hardness At 20°C (Kg/mm2) | 2000 | 2500 | 2400 |
Fracture Toughness At 20°(MpaxM1/2) | 2.0 | 4.0 | 3.3 |
PRODUCT DETAIL

APPLICATION
Silicon carbide firebrick solutions are extensively utilized across multiple industrial sectors with demanding operational conditions, providing exceptional performance where conventional materials fail. These advanced refractory brick products deliver reliable service in critical applications:
This versatile firebrick product line ensures optimal performance across diverse industrial applications, providing reliable service in the most challenging operational environments. The comprehensive silicon carbide firebrick range offers solutions for virtually every high-temperature processing requirement, while the robust refractory brick formulations guarantee long-term durability and cost-effectiveness.
PACKING


ABOUT US
Riseport Global Traders Ltd.(Shenyang) has more than 20 years of leading technology in silicon carbide manufacturing, and is currently the most comprehensive, high-quality, and technologically stable raw material and product manufacturer in the domestic silicon carbide industry. It has led the establishment of the Silicon Carbide Material Industry Technology Research Institute, with senior experts participating in research and development, conducting in-depth research on material properties, and expanding its application fields.