Xintai Low Creep Fire Clay Bricks are specially developed for high-temperature environments requiring excellent dimensional stability and long-term load-bearing performance. Manufactured from selected bauxite clinker, andalusite, and fused mullite through optimized particle grading and high-temperature sintering processes, these bricks exhibit extremely low creep deformation and outstanding resistance to thermal stress.
Compared with ordinary fire clay bricks, low creep fire clay bricks provide higher refractoriness under load and superior structural stability, making them ideal for critical sections of blast furnaces, hot blast stoves, coke ovens, glass furnaces, and regenerative chambers. Their dense structure and low porosity effectively improve resistance to slag penetration and thermal shock, ensuring a longer service life and reduced maintenance costs.
Physicochemical Parameters
| Item | Low Creep Fire Clay Brick |
|---|---|
| Al₂O₃, % | 42–53 |
| Fe₂O₃, % ≤ | 1.6 |
| CaO + MgO, % ≤ | 0.7 |
| Na₂O + K₂O, % ≤ | 0.8 |
| Bulk Density, g/cm³ ≥ | 2.20 |
| Apparent Porosity, % ≤ | 17 |
| Cold Crushing Strength, MPa ≥ | 40 |
| 0.2 MPa Refractoriness Under Load, °C ≥ | 1450 |
| High Temperature Creep Rate (1280°C×25h, 0.2MPa), % ≤ | 0.4 |
| Modulus of Rupture at 1200°C, MPa ≥ | 10 |
| Modulus of Rupture at 1350°C, MPa ≥ | 4 |
| Thermal Expansion Coefficient (20–1000°C), % | 0.7 |
| Standard | GB/T 3995, GB/T 2997 |
Product Features
- Excellent Creep Resistance: Designed for long-term service under high temperatures and load conditions, with creep rates significantly lower than ordinary fire clay bricks, ensuring dimensional stability.
- High Refractoriness Under Load: With a load softening temperature above 1450°C, the bricks maintain strength and integrity even under prolonged thermal stress.
- Dense Structure and Low Porosity: The apparent porosity is controlled below 17%, providing excellent resistance to slag penetration and chemical erosion.
- Good Thermal Shock Resistance: Special raw materials and optimized grain distribution enhance resistance to rapid heating and cooling cycles.
- High Mechanical Strength: Cold crushing strength above 40 MPa allows the bricks to withstand mechanical impact and heavy-duty industrial operations.
- Long Service Life: Superior high-temperature stability extends furnace campaign life and reduces shutdown frequency and maintenance costs.
Applications
- Hot Blast Stoves: Widely used in checker chambers, lower walls, partition walls, and support arches of hot blast stoves for blast furnaces.
- Blast Furnaces: Suitable for regenerator chambers and areas requiring excellent dimensional stability under continuous high-temperature operation.
- Glass Furnaces: Used in regenerators and partition walls where long-term thermal stability is essential.
- Coke Ovens: Provides reliable resistance to thermal stress and high-temperature creep, ensuring stable operation.
- Cement and Lime Kilns: Suitable for zones subjected to continuous heating and mechanical loads.
- Other Industrial Furnaces: Applicable to metallurgical, petrochemical, power generation, ceramics, and silicate industries.
Customization Services
We provide flexible customization solutions according to different furnace structures and operating conditions:
- Sizes: Standard and non-standard dimensions available
- Shapes: Arch bricks, wedge bricks, checker bricks, special-shaped bricks
- Technical Adjustment: Alumina content and density can be optimized for specific working conditions
- OEM Service: Custom branding and packaging available
Packing and Shipping Details
Low Creep Fire Clay Bricks are carefully packed to ensure safe transportation worldwide.
- Packing: Bricks are securely packed on wooden pallets, wrapped with polyethylene film, and tied with steel straps.
- Order Quantity: Minimum order 20 tons.
- Delivery Time: Up to 40 days depending on quantity and customization.
- Shipping Methods: Sea, air, or road depending on destination.
About Xintai Refractory
Xintai Refractory is a professional manufacturer with more than 20 years of experience in producing high-performance refractory materials. We specialize in refractory bricks, insulating bricks, castables, ramming masses, and monolithic refractory solutions for high-temperature industries worldwide.
Our products are widely used in steel, cement, glass, ceramics, petrochemical, non-ferrous metallurgy, power generation, and other industrial sectors. Supported by advanced manufacturing technology, strict quality control systems, and strong customization capabilities, Xintai Refractory delivers reliable and long-lasting refractory solutions that improve furnace efficiency and extend service life.
