Shandong Luming New Materials Technology Co., Ltd. is one of the leading manufacturers and suppliers of alumina bubble brick in China. We have world-leading production equipment and strong manufacturing capabilities. Please feel free to buy premium alumina bubble brick at competitive price from our factory.

Key Features
1. Ultra-Lightweight & High Strength:
- With a bulk density as low as 1.2 g/cm³ and compressive strength exceeding 15 MPa, our Alumina Bubble Brick combines lightweight advantages with robust mechanical performance, reducing structural load while maintaining integrity.
2. Exceptional Thermal Insulation:
- The unique hollow spherical structure of alumina bubbles ensures ultra-low thermal conductivity (≤0.5 W/m·K at 1000°C), significantly reducing heat loss and improving energy efficiency in high-temperature applications.
3. Superior Thermal Shock Resistance:
- Withstands 50+ rapid thermal cycles (1100°C to room temperature), ensuring longevity in fluctuating thermal environments.
4. High Purity & Chemical Stability:
- Composed of ≥99% Al₂O₃, the brick exhibits excellent resistance to acid, alkali, and molten metal corrosion, ideal for harsh industrial conditions.
5. Customizable Solutions:
- Available in standard sizes or tailored dimensions to meet specific furnace designs, with options for enhanced properties like abrasion resistance or reduced porosity.
Technical Specifications (LM-AB99 Model)
|
Property |
Value |
|
Al₂O₃ Content |
≥99% |
|
Bulk Density |
1.2–1.5 g/cm³ |
|
Compressive Strength |
≥15 MPa (110℃×24h) |
|
Thermal Conductivity |
≤0.5 W/(m·K) at 1000℃ |
|
Maximum Service Temp |
1800℃ |
|
Thermal Shock Resistance |
≥50 cycles (1100℃-water) |
Our Alumina Bubble Brick is widely used in:
- Petrochemical Industry: Linings for cracking furnaces and reformers, where its low thermal conductivity minimizes energy consumption.
- Ceramic & Glass Kilns: Back-up insulation layers to enhance thermal efficiency and reduce kiln shell temperatures.
- High-Temperature Furnaces: Heat shields and furnace roofs in steelmaking and non-ferrous metal processing.
- Aerospace: Thermal protection systems for components exposed to extreme heat.
- Laboratory Equipment: Insulation for precision instruments requiring stable thermal environments.

Why Choose Shandong Luming?
Innovation & Expertise
- 37 patents in refractory technology, including breakthroughs in lightweight materials.
- Proprietary manufacturing process for Alumina Bubble Brick ensures consistent quality and performance.
Quality Assurance
- ISO 9001, ISO 14001, and OHSAS 18001 certified production.
- Rigorous testing: Each batch undergoes CCS, thermal conductivity, and PLC tests.
Sustainability
- Energy-saving design aligns with global green manufacturing standards, reducing CO₂ emissions for clients.
Competitive Advantages
- Longer Service Life: 2–3 times longer than conventional insulation bricks.
- Cost-Effective: Reduces fuel consumption by up to 30% due to superior insulation.
- Global Reach: Exported to 20+ countries with FOB Qingdao Port support.
FAQ
Packaging & Logistics
Conclusion
Shandong Luming's Alumina Bubble Brick redefines high-temperature insulation with its unmatched combination of lightness, strength, and thermal efficiency. Backed by decades of R&D and stringent quality control, our Alumina Bubble Brick is the smart choice for industries aiming to optimize energy use and operational longevity.
For samples, technical data sheets, or project consultations, contact Shandong Luming New Materials Co., Ltd. today!
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