Clay-Bonded Silicon Carbide Refractory Firebrick

1.Product Overview

This firebrick is manufactured via precision batching (silicon carbide + industrial silicon powder + clay), high-pressure molding, and high-temperature sintering. The clay bonding phase forms a dense structure that enhances the brick's thermal stability, while the high-content SiC ensures wear and corrosion resistance. Unlike pure SiC refractories, it balances performance and cost-effectiveness, solving the pain points of high cost for pure SiC and poor durability of ordinary clay bricks. Standard size adapts to most industrial kilns, with custom shapes (trapezoidal, arch, special-shaped) available for non-standard equipment.

 

2.Key Features

Extreme High-Temp Resistance：Refractoriness 1790-1800℃, load softening temperature 1500-1800℃, no deformation under long-term high-heat operation (e.g., ceramic kiln firing zones).

Strong Thermal Shock & Wear Resistance：Withstands 30-50 thermal shock cycles (rapid cooling/heating) without cracking; cold crushing strength 60-120MPa, resisting wear from high-speed materials or gas flow.

Low Porosity & Corrosion Resistance：Apparent porosity 10-21%, reducing slag or molten material penetration; SiC matrix resists weakly acidic/alkaline corrosion, suitable for cement rotary kilns or metal smelting furnaces.

Cost-Effective & Durable：Clay bonding phase lowers production costs vs. pure SiC bricks, while service life is 2-3 times longer than ordinary refractory bricks, reducing replacement frequency.

 

3.Technical Parameters

| Parameter | Specification |

|--------------------------|---------------------|

| SiC Content | 35%-90% |

| SiO₂ Content | 10% |

| Al₂O₃/CaO/MgO/CrO Content | Trace amounts (little) |

| Refractoriness | 1790-1800℃ |

| Load Softening Temperature | 1500-1800℃ |

| Cold Crushing Strength | 60-120MPa |

| Bulk Density | 2.1-3.3g/cm³ |

| Apparent Porosity | 10-21% |

| Thermal Conductivity | 6-13.2 W/(m·K) |

| Thermal Shock Resistance | 30-50 cycles |

| Shape | Standard brick (customizable) |

 

4.Application Scenarios

Ceramic & Glass Industry：Kiln walls, roller kiln linings, and glass furnace regenerator grids-withstanding high heat and glass liquid erosion.

Metallurgy & Cement Industry：Blast furnace tuyeres, cement rotary kiln transition zones, and molten metal flow channels-resisting slag wear and high-temperature impact.

Chemical & Heat Equipment：High-temperature reactor linings, heat exchanger tubes, and waste incineration furnace walls-enduring chemical corrosion and thermal cycling.

 

5.Service and Support

Customization：Free shape/size customization (MOQ 1 ton), including special-shaped bricks for non-standard kiln parts; SiC content adjustable (35%-90%) for different temperature/wear demands.

Pricing & Discounts：1-24 tons: $200-$1000/ton; ≥25 tons: negotiable bulk price; $80 off for $1000+ orders.

Samples & Quality Assurance：Free samples (customer covers shipping); 1-year quality warranty, with CE certification and batch test reports provided.

Packaging & Delivery：Standard packaging: wooden pallet + plastic film (1.5-2 tons/pallet); lead time 7-15 days, with urgent delivery (3-5 days) available for critical orders.

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