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{"title":"Low Density 0.8g\/cm3 Mullite Insulation Brick with High Al2O3 Content 40-70% and","imgUrl":"https:\/\/img.chinax.com\/nimg\/48\/4f\/1c11834c6c545589f5bf37a94e88-200x200-1\/low_density_0_8g_2fcm3_mullite_insulation_brick_with_high_al2o3_content_40_70_25_and.jpg","attrs":{"Brand Name":"LEADSUN","Model Number":"JM23 JM26 JM28 JM30 JM32","Place of Origin":"CHINA","Minimum Order Quantity":"668"}}
{"title":"Lightweight Mullite Insulation Brick For Industrial Furnace High-Temperature","imgUrl":"https:\/\/img.chinax.com\/nimg\/18\/cc\/b9601697a9bd3e1542fd080b6f40-200x200-1\/lightweight_mullite_insulation_brick_for_industrial_furnace_high_temperature_refractory.jpg","attrs":{"Brand Name":"LEADSUN","Model Number":"JM23JM26 JM28 JM30","Certification":"CE ISO","Place of Origin":"China"}}
{"title":"Low Density Mullite Insulation Brick Ceramic Roller Kiln Lightweight Refractory","imgUrl":"https:\/\/img.chinax.com\/nimg\/4f\/49\/0c340bde92abf8ea86d7d30297c7-200x200-1\/low_density_mullite_insulation_brick_ceramic_roller_kiln_lightweight_refractory_bricks.jpg","attrs":{"Brand Name":"LEADSUN","Model Number":"JM23 JM26 JM28 JM30 JM32","Place of Origin":"CHINA","Minimum Order Quantity":"500"}}
{"title":"Lightweight Mullite Refractory Bricks Industrial Kiln High Temperature","imgUrl":"https:\/\/img.chinax.com\/nimg\/4b\/b9\/8c656acf476bb6c29076f52b8e68-200x200-1\/lightweight_mullite_refractory_bricks_industrial_kiln_high_temperature_insulation_bricks.jpg","attrs":{"Brand Name":"SUNWOOL","Model Number":"Mullite Insulation Brick","Certification":"ISO CE","Place of Origin":"China"}}
{"title":"Industrial Furnace Mullite Insulation Brick Lightweight High Temp Refractory","imgUrl":"https:\/\/img.chinax.com\/nimg\/8d\/0f\/cb8fb57551918dba8e736928f964-200x200-1\/industrial_furnace_mullite_insulation_brick_lightweight_high_temp_refractory_bricks.jpg","attrs":{"Brand Name":"LEADSUN","Model Number":"JM23JM26 JM28 JM30","Certification":"ISO CE","Place of Origin":"CHINA"}}
{"title":"White Mullite Insulation Brick Insulated Lightweight High Temperature Fire Brick","imgUrl":"https:\/\/img.chinax.com\/nimg\/18\/cc\/b9601697a9bd3e1542fd080b6f40-200x200-1\/white_mullite_insulation_brick_insulated_lightweight_high_temperature_fire_brick.jpg","attrs":{"Certification":"CE ISO","Place of Origin":"China","Minimum Order Quantity":"1pcs","Price":"Negotiable"}}
Factory Wholesale JM 23 JM 26 B1 B2 Low Density 0.8g/cm³ Mullite Insulation Brick for Industry Kiln
Leadsun Refractory supplies 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.
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.
Insulating bricks are manufactured utilizing exceptionally high purity clays or mullite or other ceramic materials. The carefully graded organics used during the manufacturing process burn out during firing to give a uniform pore structure.
Technical Specifications
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
Key Advantages
Strong compressive strength: Enables them to withstand significant structural loads and mechanical stress at elevated temperatures without deformation or failure.
High insulating properties: Low thermal conductivity effectively minimizes heat transfer and ensures excellent thermal efficiency in furnaces, kilns, and other thermal equipment.
Low heat storage capacity: Allows for rapid heating and cooling cycles, reducing energy consumption during thermal cycling and improving overall process efficiency.
Energy saving: Inherent energy-saving capability stems from reduced heat loss, lower fuel consumption, and improved thermal management in industrial heating systems.
High purity: Primarily composed of mullite (3Al₂O₃*2SiO₂) phases, ensuring superior chemical stability and resistance to corrosion from alkalis, acids, and other aggressive atmospheres.
Tight dimensional tolerance: Ensures precise installation, uniform lining, and minimal joint gaps, which further enhances thermal insulation and structural integrity.
Low impurities: Minimizes unwanted reactions, contamination risks, and degradation in high-temperature environments, thereby extending service life and maintaining consistent performance.
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...
