Silicon Carbide Fire Brick
Silicon carbide refractory bricks (SiC bricks) are high-performance refractory materials made from industrial silicon carbide as the main raw material and sintered at high temperatures. Their core advantages are high thermal conductivity, high wear resistance, thermal shock resistance, and corrosion resistance. Ruitai Lianxin silicon carbide fire bricks are widely used in key parts of high-temperature industries.
Characteristics of Silicon Carbide Brick
Ruitai Lianxin silicon carbide fire bricks core advantages are high thermal conductivity, high wear resistance, thermal shock resistance, and corrosion resistance.
High Temperature Resistance
Refractoriness > 1700℃, long-term service temperature 1400–1600℃, stable high-temperature strength.
High Thermal Conductivity
Thermal conductivity 11–28 W/(m・K) (1000℃), far exceeding that of ordinary refractory bricks, resulting in significant energy savings.
Super Wear Resistance
Mohs hardness 9, second only to diamond, strong resistance to erosion and wear.
Resistant to Thermal Shock
Low coefficient of thermal expansion (4.5–5.5×10⁻⁶/℃), less prone to cracking under drastic temperature changes.
Resistant to Corrosion
Resistant to acidic slag, alkaline media, and various chemical gases.
High Strength
Pressure resistance 50–70 MPa at room temperature, structurally stable at high temperatures.
Application of Silicon Carbide Fire Brick
Blast furnace hearth/belly, ladle lining, nozzles, and heating furnace slide rails.
Aluminum electrolytic cell lining, zinc distillation tank, and aluminum refining furnace lining.
Kiln roof panels, saggers, supports, and flame deflectors.
Incinerators, oil and gas generators, and heat exchanger linings.
Silicon Carbide Fire Brick Technical Parameters
As a professional refractory bricks supplier, we provide you with detailed technical specifications for silicon carbide refractory bricks to assist you in making the right choice. The following represent our standard specifications. Additionally, we offer customized refractory brick services tailored to the specific requirements of your kiln.
| Oxide Bonded SiC Brick | Corundum SIC Brick | Mullite SiC Brick | Alumina SIC Brick | |
| SiC+C%≥ | 90 | 70 | 65 | 20 |
| Al2O3%≥ | - | 20 | 20 | 55 |
| Bulk density g/cm³≥ | 2.5 | 2.6 | 2.3 | 2.5 |
| Apparent porosity %≤ | 18 | 20 | 20 | 22 |
| Cold crushing strength MPa ≥ | 100 | 100 | 80 | 80 |
| Refractoriness Under Load ℃≥ | 1700 | 1700 | 1650 | 1550 |
| Thermal Conductivity W/m ·k(1200℃) | 13.2 | 9-10 | 12 | 6-8 |
| The thermal shock stability 1100 ℃Water cooled (cycle) ≥ | 50 | 30 | 40 | 30 |
Silicon Nitride Bonded Silicon Carbide Brick
Silicon nitride bonded silicon carbide bricks (Si₃N₄-SiC) are high-performance refractory bricks with SiC as aggregate and Si₃N₄ as the bonding phase. The core is the in-situ nitriding sintering to form a needle-like Si₃N₄ network. They have ultra-high strength, excellent thermal shock resistance, strong corrosion resistance and high thermal conductivity, making them the preferred material for high-temperature and highly corrosive working conditions.
Silicon Nitride Bonded Silicon Carbide Brick
| Si3N₄% | ≥ | 20 |
| SiC % | ≥ | 72 |
| Fe₂O₃% | ≤ | 0.5 |
| Bulk density g/cm³ | ≥ | 2.65 |
| Apparent porosity | ≤ | 16 |
| Cold bending strength MPa | ≥ | 45 |
| MP Bending strength at 1400 ℃ | 45 | |
| Cold crushing strength MPa | ≥ | 160 |
| Thermal conductivity coefficient ( 1 0 0 0 ℃)W/m · k | 16 |
Silicon Carbide Refractory Brick Price
Our wholesale refractory bricks prices are flexible and can be adjusted based on various factors, including order quantity, product specifications (size, shape), refractory rating (standard, medium, high), and delivery terms. For custom-made silicon carbide bricks (non-standard specifications or special refractory ratings), prices will be negotiated based on raw material costs, production complexity, and order quantity.
As a reliable refractory brick supplier, we are committed to providing you with the best quotes and will offer detailed quotations based on your specific order requirements to help you effectively control procurement costs.
Ruitai Lianxin Refractory Brick Manufacturing Process
Ruitai Lianxin refractory brick manufacturer consistently adheres to rigorous, standardized production processes to ensure that every refractory brick possesses consistent quality and reliable performance.
Why Choose Ruitai Lianxin Silicon Carbide Fire Bricks?
Ruitai Lianxin is a leading refractory bricks manufacturer, operating its own dedicated facility and committed to providing global customers with factory-direct refractory bricks and high-quality wholesale services.
Factory Direct Sales Advantages
As a direct seller of refractory fire bricks, we can offer highly competitive prices while ensuring product quality, and control the entire process from raw materials to finished products.
Strict Quality Control
Our fire brick factory has advanced production lines and a professional quality inspection team, which conducts rigorous testing on every batch of products to ensure that they meet international standards.
Customized Supply
We fully understand the diverse needs of industries such as non-ferrous metals, steel, cement, and glass for silicon carbide bricks, can provide custom-sized silicon carbide fire bricks in terms of specifications, refractoriness rating, and shape, perfectly matching your kiln and equipment requirements.
On-Time Delivery
Reinforced with high-strength strapping and solid wood pallets, and customized packaging is also available. We strictly adhere to our delivery commitments, delivering your order within 20-30 days.
Ruitai Lianxin Refractory Brick Customer Cases
Ruitai Lianxin focus on exporting high-standard refractory bricks and providing factory-direct refractory bricks to industrial clients worldwide. Our products and customized refractory fire brick solutions are widely praised globally, and we have stable, long-term partners in many countries,including Uzbekistan, Syria, and Pakistan. Ruitai Lianxin will continue to pursue mutual benefit and win-win results through in-depth cooperation with global refractory brick customers.
Cooperation Partners
As a refractory fire bricks supplier with source factory, we have many outstanding partners from all walks of life. Together with us, these partners have forged brilliant achievements and injected unlimited impetus into development.
Contact Us
As a professional refractory brick manufacturer, supplier, and factory, we offer high-quality factory-direct refractory bricks and wholesale services, and can customize kiln solutions to meet your needs. Contact us now, and our team will reach out to you as soon as possible to provide you with the best factory quote.