High Alumina Insulation Brick
Application Industry: Common Refractory Materials
Application Equipment: Masonry Industrial Furnaces, Hot Blast Stove, and Other Thermal Equipment and Furnace Lining
Size: Custom high alumina insulation brick geometry per industrial furnace design (free engineering on request)
Products Overview
Our High Alumina Insulation Brick is a high-performance refractory product engineered for masonry industrial furnaces, hot blast stove, and other thermal equipment and furnace lining insulation service. The high-aluminum heat-insulating bricks manufactured by advanced and unique technology have the characteristics of high compressive strength and good thermal shock resistance. After use, the furnace wall heat capacity can be reduced and the thermal efficiency of the furnace can be improved. Used in the insulation of masonry industrial furnaces and other thermal furnaces and other thermal equipment and furnace lining.
The High Alumina Insulation Brick product family is offered in three engineering-proven LG chemistry grades. The CH-LG0.6 grade features Bulk Density minimum 0.6 g/cm3 for general industrial furnace insulation service, with Cold Crushing Strength minimum 1.96 MPa, Reheating Line Change maximum 2 percent after 1350 °C drying for 12 hours, Thermal Conductivity maximum 0.25 W/m.k at average 350 °C, Load Softening Temperature minimum 1300 °C at 0.1 MPa, Al2O3 content minimum 48 percent, Fe2O3 content maximum 1.8 percent, and Maximum Service Temperature 1300 °C. The CH-LG0.8 grade features Bulk Density minimum 0.8 g/cm3 for higher-demand industrial furnace insulation service, with Cold Crushing Strength minimum 2.94 MPa, Reheating Line Change maximum 2 percent after 1400 °C drying for 12 hours, Thermal Conductivity maximum 0.32 W/m.k at average 350 °C, Load Softening Temperature minimum 1350 °C at 0.1 MPa, Al2O3 content minimum 48 percent, Fe2O3 content maximum 1.6 percent, and Maximum Service Temperature 1350 °C. The CH-LG1.0 grade features Bulk Density minimum 1.0 g/cm3 for highest-demand industrial furnace insulation service, with Cold Crushing Strength minimum 4.0 MPa, Reheating Line Change maximum 2 percent after 1450 °C drying for 12 hours, Thermal Conductivity maximum 0.45 W/m.k at average 350 °C, Load Softening Temperature minimum 1380 °C at 0.1 MPa, Al2O3 content minimum 48 percent, Fe2O3 content maximum 1.5 percent, and Maximum Service Temperature 1380 °C.
Sourced from our Xinmi City, Zhengzhou, Henan, China facility, each High Alumina Insulation Brick grade is engineered to ASTM, GB/T, and ISO refractory standards. For an overview of the broader catalogue, see the Common Refractory Materials category, or contact our technical sales team for a free consultation against your refractory drawing.
Product Features
Features:
- Manufactured by Zhengzhou caihua with advanced and unique technology, with high compressive strength and good thermal shock resistance characteristics
- Engineering-proven after use, the furnace wall heat capacity can be reduced and the thermal efficiency of the furnace can be improved
- Three LG chemistry grades covering Bulk Density 0.6-1.0 g/cm3 and Maximum Service Temperature 1300-1380 °C for matching different industrial furnace insulation service requirements
- Al2O3 content minimum 48% with Reheating Line Change maximum 2 percent and Load Softening Temperature minimum 1300-1380 °C for industrial furnace insulation service
- Used in the insulation of masonry industrial furnaces and other thermal furnaces and other thermal equipment and furnace lining service
Product Specification
High alumina insulating brick
The high-aluminum heat-insulating bricks manufactured by advanced and unique technology have the characteristics of high compressive strength and good thermal shock resistance. After use, the furnace wall heat capacity can be reduced and the thermal efficiency of the furnace can be improved. Used in the insulation of masonry industrial furnaces and other thermal furnaces and other thermal equipment and furnace lining.
| Brands / Items | CH-LG0.6 | CH-LG0.8 | CH-LG1.0 | |
|---|---|---|---|---|
| Bulk density (g/cm³) ≥ | 0.6 | 0.8 | 1 | |
| Cold crushing strength (MPa) ≥ | 1.96 | 2.94 | 4 | |
| The reheating line changes by no more than 2% of the test temperature ≤ | 1350 | 1400 | 1450 | |
| Thermal conductivity at average temperature 350±25°C (W/m.k) | 0.25 | 0.32 | 0.45 | |
| 0.1MPa load softening temperature (°C) ≥ | 1300 | 1350 | 1380 | |
| Al2O3 (%) ≥ | 48 | 48 | 48 | |
| Fe2O3 (%) | 1.8 | 1.6 | 1.5 | |
| Maximum service temperature (°C) | 1300 | 1350 | 1380 | |
Note: Eight performance parameters specified per source image: Bulk density, Cold crushing strength, Reheating line change test temperature, Thermal conductivity, Load softening temperature, Al2O3, Fe2O3, and Maximum service temperature. Three CH-LG chemistry grades engineered for masonry industrial furnaces and other thermal equipment insulation service. For project-specific chemistry and grade, contact CH Refractories engineering.
Product Applications
High Alumina Insulation Brick is a high-performance refractory product engineered for masonry industrial furnaces, hot blast stove, and other thermal equipment and furnace lining insulation service. The high-aluminum heat-insulating bricks manufactured by advanced and unique technology have the characteristics of high compressive strength and good thermal shock resistance. After use, the furnace wall heat capacity can be reduced and the thermal efficiency of the furnace can be improved. The high alumina insulation brick product family is used in the insulation of masonry industrial furnaces and other thermal furnaces and other thermal equipment and furnace lining, with stable quality and good engineering performance across the global common refractory materials value chain.
Application Industry: Common Refractory Materials.
Target Equipment: Masonry Industrial Furnaces, Hot Blast Stove, and Other Thermal Equipment and Furnace Lining of small, medium-size, and large industrial operations across the global common refractory materials value chain.
Specific Application Zones: The CH-LG0.6 grade (Bulk Density minimum 0.6 g/cm3) is the standard variant engineered for general industrial furnace insulation service, with Cold Crushing Strength minimum 1.96 MPa, Thermal Conductivity maximum 0.25 W/m.k, Load Softening Temperature minimum 1300 °C, and Maximum Service Temperature 1300 °C. The CH-LG0.8 grade (Bulk Density minimum 0.8 g/cm3) is the higher-demand variant engineered for industrial furnace insulation service, with Cold Crushing Strength minimum 2.94 MPa, Thermal Conductivity maximum 0.32 W/m.k, Load Softening Temperature minimum 1350 °C, and Maximum Service Temperature 1350 °C. The CH-LG1.0 grade (Bulk Density minimum 1.0 g/cm3) is the highest-demand variant engineered for industrial furnace insulation service, with Cold Crushing Strength minimum 4.0 MPa, Thermal Conductivity maximum 0.45 W/m.k, Load Softening Temperature minimum 1380 °C, and Maximum Service Temperature 1380 °C. All three grades deliver Al2O3 content minimum 48% and Reheating Line Change maximum 2 percent after 1350-1450 °C drying for 12 hours for masonry industrial furnace, hot blast stove, and other thermal equipment insulation service, with stable quality and good engineering performance across the global common refractory materials value chain.
CH Refractories is a High Alumina Insulation Brick manufacturer in China, Henan, Zhengzhou. The complete High Alumina Insulation Brick product family is manufactured in our Xinmi City, Zhengzhou, Henan, China facility to ASTM, GB/T, and ISO refractory standards. Each batch is supported by free consultation, on-site technical support, and a dedicated engineering team serving Common Refractory Materials customers across the global common refractory materials value chain.
