Qingdao Leadsun Refractory Co., Ltd
| Payment Terms | L/C,D/P,T/T,Western Union |
| Supply Ability | 100tons/week |
| Delivery Time | 10-15days |
| Packaging Details | pallet |
| Size | 230*114*65mm 230*114*75mm |
| Al2O3 Content | 40-70% |
| Density | 0.5-1.3g/cm3 |
| Refractoriness | 900-1500C |
| Package | Pallet |
| Shape | Customizable |
| Color | White or Pink |
| Brand Name | LEADSUN |
| Model Number | JM23 JM26 JM28 JM30 JM32 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C,D/P,T/T,Western Union | Supply Ability | 100tons/week |
| Delivery Time | 10-15days | Packaging Details | pallet |
| Size | 230*114*65mm 230*114*75mm | Al2O3 Content | 40-70% |
| Density | 0.5-1.3g/cm3 | Refractoriness | 900-1500C |
| Package | Pallet | Shape | Customizable |
| Color | White or Pink | Brand Name | LEADSUN |
| Model Number | JM23 JM26 JM28 JM30 JM32 | Place of Origin | CHINA |
| High Light | low density mullite insulation brick ，Refractory Mullite Insulation Brick ，Kiln Lightweight Refractory Bricks | ||
JM23 JM26 JM28 JM30 JM32 Mullite Insulation Brick Low Density Refractory Insulation For Furnace Lining Industry Kiln Ceramic Roller Kiln
Leadsun Refractory supply several grades of insulating brick for use in applications from 900℃ to 1760℃.Each grade of brick is formulated to meet specific thermal and physical requirements.After firing each brick is machined to close dimensional tolerances.
Insulating bricks are manufactured utilising exceptionally high purity clays or mullite or other ceramic materials.The carefully graded organics which are used during the manufacturing process burn out during firing to give a uniform pore structure.
Overall, mullite insulating bricks offer a reliable, efficient, and durable solution for applications requiring thermal insulation, structural stability, and energy conservation under demanding operating conditions
| Description | JM23 | JM26 | JM28 | JM30 | JM32 |
| Classification Temperature (℃) | 1300 | 1400 | 1500 | 1550 | 1600 |
| Al2O3 | 40 | 56 | 67 | 73 | 79 |
| SiO2 | 51 | 41 | 30 | 24 | 20 |
| Fe2O3 | ≤1.0 | ≤0.8 | ≤0.7 | ≤0.6 | ≤0.5 |
| Density(kg/m3) | 600 | 800 | 900 | 1000 | 1100 |
| Module of Rupture(MPa) |
0.9 |
1.5 | 1.8 | 2.0 | 2.2 |
| Cold Crushing Strength(MPa) | 1.2 | 2.4 | 2.6 | 3.0 | 3.5 |
| Permanent Linear Change % |
1230℃*24h≤0.3 | 1400℃*24h≤0.6 | 1510℃*24h≤0.7 | 1620℃*24h≤0.9 | 1650℃*24h≤1.0 |
Advantages:
1. High insulating properties
Due to their low thermal conductivity, which effectively minimizes heat transfer and ensures excellent thermal efficiency in furnaces, kilns, and other thermal equipment.
2. Strong compressive strength
In terms of mechanical durability, they possess strong compressive strength, enabling them to withstand significant structural loads and mechanical stress at elevated temperatures without deformation or failure.
3. Low heat storage capacity
This characteristic allows for rapid heating and cooling cycles, reducing energy consumption during thermal cycling and improving overall process efficiency.
4. High purity
The mullite insulating bricks is primarily composed of mullite (3Al₂O₃·2SiO₂) phases, ensures superior chemical stability and resistance to corrosion from alkalis, acids, and other aggressive atmospheres.
5. Tight dimensional tolerance
Ensuring precise installation, uniform lining, and minimal joint gaps, which further enhances thermal insulation and structural integrity.
6.Energy saving
From an energy perspective, their inherent energy-saving capability stems from reduced heat loss, lower fuel consumption, and improved thermal management in industrial heating systems.
7.Low impurities
It minimizes unwanted reactions, contamination risks, and degradation in high-temperature environments, thereby extending service life and maintaining consistent performance.
Applications
1.Primary hot face linings
2.Back-up insulation for furnaces and kilns
3.Flue insulation
4.Sulphur recovery equipment
5.Hot blast stoves
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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