High alumina brick
Application Industry: Common Refractory Materials
Application Equipment: Small and Medium-Sized Blast Furnace, Hot Blast Stove, and Other Industrial Kiln
Size: Custom high alumina brick geometry per industrial kiln design (free engineering on request)
Products Overview
Our High alumina brick is a high-performance refractory product engineered for small and medium-sized blast furnace, hot blast stove, and other industrial kiln service. This series of products is characterized by special grade aluminum bauxite clinker as the main raw material, supplemented by special additives, high pressure forming and high temperature firing. It has the characteristics of large heat storage capacity and small creep rate. Applicable to small and mediumsized blast furnace supporting hot blast stove and other industrial kiln.
The High alumina brick product family is offered in four engineering-proven LZ chemistry grades. The CH-LZ75 grade features Al2O3 content minimum 75% for highest-demand industrial kiln service, with Cold Crushing Strength minimum 54 MPa at normal temperature, Apparent Porosity maximum 23 percent, Load Softening Temperature minimum 1520 °C, Permanent Linear Change plus or minus 0.1-0.4 percent after 1500 °C drying for 2 hours, and Refractoriness minimum 1790 °C. The CH-LZ65 grade features Al2O3 content minimum 65% for high-demand industrial kiln service, with Cold Crushing Strength minimum 49 MPa at normal temperature, Apparent Porosity maximum 23 percent, Load Softening Temperature minimum 1500 °C, Permanent Linear Change plus or minus 0.1-0.4 percent after 1500 °C drying for 2 hours, and Refractoriness minimum 1790 °C. The CH-LZ55 grade features Al2O3 content minimum 55% for general demand industrial kiln service, with Cold Crushing Strength minimum 44 MPa at normal temperature, Apparent Porosity maximum 22 percent, Load Softening Temperature minimum 1470 °C, Permanent Linear Change plus or minus 0.1-0.4 percent after 1500 °C drying for 2 hours, and Refractoriness minimum 1770 °C. The CH-LZ48 grade features Al2O3 content minimum 48% for lowest demand industrial kiln service, with Cold Crushing Strength minimum 40 MPa at normal temperature, Apparent Porosity maximum 22 percent, Load Softening Temperature minimum 1420 °C, Permanent Linear Change plus or minus 0.1-0.4 percent after 1450 °C drying for 2 hours, and Refractoriness minimum 1750 °C.
Sourced from our Xinmi City, Zhengzhou, Henan, China facility, each High alumina 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 special grade aluminum bauxite clinker as the main raw material, supplemented by special additives, high pressure forming, and high temperature firing
- Engineering-proven characterized with large heat storage capacity and small creep rate for small and medium-sized blast furnace and hot blast stove service
- Four LZ chemistry grades covering Al2O3 content 48-75% and Refractoriness 1750-1790 °C for matching different industrial kiln service requirements
- Cold Crushing Strength minimum 40-54 MPa and Apparent Porosity maximum 22-23 percent depending on grade for industrial kiln service
- Load Softening Temperature minimum 1420-1520 °C and Permanent Linear Change plus or minus 0.1-0.4 percent for industrial kiln service
Product Specification
High alumina brick
This series of products is characterized by special grade aluminum bauxite clinker as the main raw material, supplemented by special additives, high pressure forming and high temperature firing. It has the characteristics of large heat storage capacity and small creep rate. Applicable to small and mediumsized blast furnace supporting hot blast stove and other industrial kiln.
| Brands / Items | CH-LZ75 | CH-LZ65 | CH-LZ55 | CH-LZ48 | |
|---|---|---|---|---|---|
| Al2O3 (%) ≥ | 75 | 65 | 55 | 48 | |
| Cold compressive strength (MPa) ≥ | 54 | 49 | 44 | 40 | |
| Apparent porosity (%) ≤ | 23 | 23 | 22 | 22 | |
| Load softening temperature (°C) ≥ | 1520 | 1500 | 1470 | 1420 | |
| Reheating linear change (%) | +0.1 -0.4 (1500°C, 2h) |
+0.1 -0.4 (1500°C, 2h) |
+0.1 -0.4 (1500°C, 2h) |
+0.1 -0.4 (1450°C, 2h) |
|
| Refractoriness (°C) ≥ | 1790 | 1790 | 1770 | 1750 | |
Note: Six performance parameters specified per source image: Al2O3, Cold compressive strength, Apparent porosity, Load softening temperature, Reheating linear change, and Refractoriness. Four CH-LZ chemistry grades engineered for small and mediumsized blast furnace supporting hot blast stove and other industrial kiln service. For project-specific chemistry and grade, contact CH Refractories engineering.
Product Applications
High alumina brick is a high-performance refractory product engineered for small and medium-sized blast furnace, hot blast stove, and other industrial kiln service. This series of products is characterized by special grade aluminum bauxite clinker as the main raw material, supplemented by special additives, high pressure forming and high temperature firing. It has the characteristics of large heat storage capacity and small creep rate. The high alumina brick product family is applicable to small and mediumsized blast furnace supporting hot blast stove and other industrial kiln, with stable quality and good engineering performance across the global common refractory materials value chain.
Application Industry: Common Refractory Materials.
Target Equipment: Small and Medium-Sized Blast Furnace, Hot Blast Stove, and Other Industrial Kiln of small, medium-size, and large industrial operations across the global common refractory materials value chain.
Specific Application Zones: The CH-LZ75 grade (Al2O3 content minimum 75%) is the highest-demand variant engineered for industrial kiln service, with Cold Crushing Strength minimum 54 MPa, Load Softening Temperature minimum 1520 °C, and Refractoriness minimum 1790 °C. The CH-LZ65 grade (Al2O3 content minimum 65%) is the high-demand variant engineered for industrial kiln service, with Cold Crushing Strength minimum 49 MPa, Load Softening Temperature minimum 1500 °C, and Refractoriness minimum 1790 °C. The CH-LZ55 grade (Al2O3 content minimum 55%) is the general demand variant engineered for industrial kiln service, with Cold Crushing Strength minimum 44 MPa, Load Softening Temperature minimum 1470 °C, and Refractoriness minimum 1770 °C. The CH-LZ48 grade (Al2O3 content minimum 48%) is the lowest demand variant engineered for industrial kiln service, with Cold Crushing Strength minimum 40 MPa, Load Softening Temperature minimum 1420 °C, and Refractoriness minimum 1750 °C. All four grades deliver Apparent Porosity maximum 22-23 percent and Permanent Linear Change plus or minus 0.1-0.4 percent after 1450-1500 °C drying for 2 hours for small and medium-sized blast furnace, hot blast stove, and other industrial kiln service, with stable quality and good engineering performance across the global common refractory materials value chain.
CH Refractories is a High alumina brick manufacturer in China, Henan, Zhengzhou. The complete High alumina 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.
