
Lightweight High Strength Mullite Insulation Refractory Brick. High Temperature Resistance: Refractoriness ranges from 1580 to 1770 degrees Celsius for extreme heat applications. Lightweight Design: Bulk density between 0.55 and 1.25 g/cm3 ensures easy handling and reduced structural load. Low Thermal Conductivity: Superior insulation performance with thermal conductivity as low as 0.14 W/m.k at 400C. High Mechanical Strength: Cold crushing strength up to 3.5 MPa ensures durability under heavy loads. Versatile Kiln Application: Ideal for shuttle kilns, roller kilns, glass, and petrochemical kiln linings. Multiple Grade Options: Available in five grades (JM23-JM32) with Al2O3 content from 37% to 77%. German Standard Compliance: Produced in accordance with German industrial standards for export quality. Low Impurity Content: Fe2O3 content kept below 1.0% to ensure high purity and performance.