Qingdao Leadsun Refractory Co., Ltd
| Thermal conductivity | 0.11 to 0.58 W/(m*K) |
| Bulk density | 0.4 to 1.35 g/cm³ |
| Delivery Time | 10-12 days |
| Material composition | Mullite, glass phase, corundum |
| Payment Terms | L/C,T/T,D/P |
| Service temperature | High-temperature |
| Supply Ability | 1000 tons/month |
| Alumina content | Exceeding 48% |
| Packaging Details | Pallet |
| Porosity | 66% to 73% |
| Certification | ISO CE |
| Model Number | INSULATION BRICK |
| Brand Name | LEADSUN |
| Place of Origin | China |
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Product Specification
| Thermal conductivity | 0.11 to 0.58 W/(m*K) | Bulk density | 0.4 to 1.35 g/cm³ |
| Delivery Time | 10-12 days | Material composition | Mullite, glass phase, corundum |
| Payment Terms | L/C,T/T,D/P | Service temperature | High-temperature |
| Supply Ability | 1000 tons/month | Alumina content | Exceeding 48% |
| Packaging Details | Pallet | Porosity | 66% to 73% |
| Certification | ISO CE | Model Number | INSULATION BRICK |
| Brand Name | LEADSUN | Place of Origin | China |
| High Light | high alumina insulation brick lightweight ，high alumina insulation brick furnace efficiency ，high alumina insulation brick energy saving | ||
High Alumina Insulation Brick, also known as lightweight high alumina refractory brick or high-alumina heat insulating brick, is a specialized thermal insulation material designed for high-temperature industrial applications. It is defined as a lightweight refractory material with an alumina (Al₂O₃) content typically exceeding 48%, primarily composed of mullite, glass phase, and corundum
| Category | Key Performance Characteristics |
|---|---|
| Low Bulk Density | With a density range of 0.4 to 1.35 g/cm³ |
| Low Thermal Conductivity | The thermal conductivity ranges from approximately 0.11 to 0.58 W/(m·K) |
| High Porosity | The bricks feature porosity levels of 66% to 73%, |
| Standard Compliance | ASTM, ISO, and EN international refractory safety standards. |
Manufacturers typically produce these bricks in accordance with ISO 9001 quality systems, and many products are certified as asbestos-free, meeting RoHS and REACH environmental standards . Custom sizes and shapes are available through OEM services .
These versatile insulation bricks represent a critical component in modern industrial thermal management, offering an effective balance of lightweight construction, thermal insulation performance, and high-temperature durability.
Q1: How do I choose the right grade?
A: Consider Al₂O₃ content, bulk density, service temperature, thermal conductivity, and required strength.
Q2: What is the typical delivery lead time?
A: Standard sizes: 10-15 days. Custom shapes: 15-20 days after order confirmation.
Q3: Can I get samples or test reports?
A: Yes. We provide free samples, technical datasheets, and third-party test reports upon request.
Company Details
Business Type:
Distributor/Wholesaler,Exporter,Trading Company,Seller
Year Established:
2014
Total Annual:
3000000-5000000
Employee Number:
5~20
Ecer Certification：
Verified Supplier
Our products cover heavy & light shaped and unshaped refractories, and are widely used in power, steel & iron, non-ferrous, petrochemicals, building materials and other industries, and are exported to more than 30 countries and regions in Europe, America, Africa, Oceania, Southeast Asia... Our products cover heavy & light shaped and unshaped refractories, and are widely used in power, steel & iron, non-ferrous, petrochemicals, building materials and other industries, and are exported to more than 30 countries and regions in Europe, America, Africa, Oceania, Southeast Asia...
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