Industrial furnace acid and alkali slag high alumina bricks with 85% Al2O3 content and heat resistance up to 1800°C. Highly efficient and energy-saving refractory materials from Zhengzhou Rongsheng, a national high-tech enterprise.

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ZHENGZHOU RONGSHENG REFRACTORY CO., LIMITED
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Product Parameters
GeneralParameters
Product Name: High Alumina Bricks
Marketing Name: Premium High Alumina Bricks for High-Temperature Applications
Manufacturer: Zhengzhou Rongsheng Refractory Materials Co., Ltd.
Alumina Content: > 48%
Temperature Resistance: 1750 to 1800°C
Thermal Conductivity: Low
Applications: Steelmaking, Glass Melting, Cement Industries, High-Temperature Furnaces
Strength: High Mechanical Strength
Corrosion Resistance: Excellent Slag Resistance
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Specifications
Dimensions: Customizable to client requirements
Weight: Variable based on dimensions
Typical Density: 3.0 - 3.5 g/cm³
Bulk Density: ≥ 2.8 g/cm³
Water Absorption: < 3%
Thermal Expansion Rate: Low
Chemical Composition: Mainly Al2O3 and SiO2 with trace amounts of other oxides
Performance
Service Life: Extended service life due to superior material properties
Thermal Shock Resistance: Good
Refractoriness: High
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Product Details
Product Introduction
Zhengzhou Rongsheng Kiln Refractory Co., Ltd. (a National High-Tech Enterprise) specializes in the research and development and production of high-quality high-alumina bricks. These bricks, with an Al₂O₃ content ≥85%, can withstand long-term, stable service in extreme high-temperature environments of 1750–1800°C, maintaining structural strength and integrity. Their unique formula imparts exceptional resistance to acid and alkali slag corrosion, making them particularly suitable for lining high-temperature industrial furnaces such as steel, glass, and cement, effectively addressing the challenge of material loss in complex chemical environments. With low thermal conductivity and excellent insulation properties, these bricks significantly reduce energy consumption, helping customers achieve green and low-carbon operations. Leveraging over 20 years of technological expertise and a rigorous quality control system (certified by multiple international certifications, including ISO9001 and CE), Rongsheng provides customized, full-lifecycle refractory solutions to customers worldwide, ensuring a 99% pass rate for every batch. Rongsheng is a trusted and preferred refractory brand for industrial kiln construction.
Advantages and features
1. Al₂O₃ content ≥85%, high temperature resistance up to 1800°C, meeting the needs of extreme working conditions.
2. Excellent resistance to acid and alkali slag corrosion, extending the life of the kiln and reducing maintenance costs.
3. Low thermal conductivity design, good insulation effect, energy saving and consumption reduction, in line with international environmental protection standards.
4. Support customized specifications and packaging to meet the needs of customers in different countries and regions.
5. Passed ISO9001, CE and other international certifications, with stable and reliable quality and worry-free export.
Application Scenario
It is suitable for lining of high-temperature industrial furnaces such as steel metallurgy, glass manufacturing, cement rotary kilns, and ceramic firing. It targets the global market and is particularly suitable for customer groups in the Middle East, Southeast Asia, Europe, and Africa who have a stable demand for high-performance refractory materials, including engineering contractors, equipment manufacturers, and large-scale industrial production enterprises.
Corporate Information
ZHENGZHOU RONGSHENG REFRACTORY CO., LIMITED
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Address
Litang Industrial District, Xinmi, Henan, China.
Advisory Message
Product Specifications
Color
White Gray Brown
Alumina Content
48% 65% 75%
Dimensions
230x114x76 mm 300x150x100 mm 200x100x100 mm
Weight
2.5 kg 3.0 kg 3.5 kg
Max Service Temperature
1750°C 1800°C
Thermal Conductivity
0.5 W/m·K 0.6 W/m·K 0.8 W/m·K
Compressive Strength
30 MPa 40 MPa 50 MPa
Package Type
Pallet Bundle Box
Quantity per Pallet
50 pieces 100 pieces 200 pieces
Custom Size Options
Available upon request
Certifications
ISO 9001 SGS CE
Applications
Steelmaking Glass Melting Cement Production High-Temperature Furnaces
Product Parameters
Product Details
Corporate Information
Service Guarantee
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