CE and ISO certified, high-refractory corundum-mullite lightweight refractory bricks (1770-2000°C) are suitable for energy saving and consumption reduction in steel and cement kilns. They are internationally export-grade products.

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ZHENGZHOU RONGSHENG REFRACTORY CO., LIMITED
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Product Parameters
Product performance parameters
Refractory: 1770°C - 2000°C
density: ≥ 1.5 g/cm³
Compressive strength: ≥ 150 MPa
Thermal conductivity: ≤ 0.5 W/m·K (tested at 1000°C)
High temperature linear expansion coefficient: ≤ 5.0 × 10⁻⁶ /°C
Thermal shock resistance: good
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Material composition
Corundum content: ≥ 70%
Mullite content: ≥ 30%
Application areas
Steel Manufacturing: Converters, steelmaking furnaces, heating furnaces
Cement Industry: Cement kiln, dry process production line
Tunnel kiln: For ceramic and brick production
Certification Information
CE certification: Comply with relevant EU standards
ISO Certification: Quality Management System ISO 9001
Recommendations
Installation temperature: It is recommended to install below 1500°C
Maintenance Recommendations: Regularly check brick integrity to prevent thermal cracks
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Product Details
Product Introduction
The corundum-mullite lightweight refractory bricks produced by Zhengzhou Rongsheng Kiln Refractory Materials Co., Ltd. are specifically designed for high-temperature industrial applications worldwide. They withstand temperatures as high as 1770–2000°C and offer excellent thermal insulation and structural stability. Certified by ISO9001 quality management systems, ISO14001 environmental management systems, and CE certification, these bricks meet the environmental and safety standards for refractory materials in developed countries such as Europe and the United States. They are widely used in key thermal equipment such as steel smelting, cement rotary kilns, glass melting furnaces, and waste incinerators. Their lightweight design significantly reduces heat loss, improves energy efficiency, and helps customers achieve energy conservation and emission reduction goals. As a national high-tech enterprise, Rongsheng boasts over 13 years of industry experience and an annual production capacity exceeding 130,000 tons. Serving over 70 countries and regions worldwide, they provide one-stop solutions, from selection consultation to customized construction, ensuring that each refractory brick is precisely matched to customer needs, creating efficient, safe, and durable high-temperature lining systems.
Advantages and features
1. The refractoriness reaches 1770–2000°C, meeting the requirements of extremely high temperature working conditions.
2. Lightweight structure effectively reduces heat loss and has significant energy-saving effect.
3. Passed CE, ISO9001, ISO14001 and other international certifications, reliable quality, green and environmentally friendly.
4. Support customized production and adapt to different kiln sizes and process requirements.
5. Provide professional selection guidance and construction technical support to ensure installation quality.
Application Scenario
Suitable for lining high-temperature industrial equipment such as steelmaking furnaces, cement rotary kilns, glass melting furnaces, ceramic kilns, and waste incinerators. Primarily targeting the international market, we serve clients in the metallurgy, building materials, and energy industries across Europe, the Middle East, Southeast Asia, Africa, and South America. Our products are particularly well-suited for large-scale projects focused on energy conservation, consumption reduction, and regulatory compliance.
Corporate Information
ZHENGZHOU RONGSHENG REFRACTORY CO., LIMITED
Service Guarantee
Address
Litang Industrial District, Xinmi, Henan, China.
Advisory Message
Product Specifications
color
grey Beige brown
size
230mm x 114mm x 76mm 300mm x 150mm x 75mm 400mm x 200mm x 100mm Custom sizes
Refractory
1770°C 1800°C 1900°C 2000°C
density
1.2g/cm³ 1.4g/cm³ 1.5g/cm³ Customized density
Compressive strength
40MPa 50MPa 60MPa Customized compressive strength
Thermal Conductivity
0.15W/m·K 0.20W/m·K Customized thermal conductivity
Applicable industries
Steel Manufacturing Cement Industry Tunnel kiln High temperature furnace
Certification standards
THIS ISO9001 ISO14001 Customized certification
Packing
Bulk Pallet packaging Wooden packing Customized Packaging
delivery time
7 days 14 days Customized delivery time
Order quantity
Small batches Bulk orders Custom order quantity
After-sales service
One-year warranty Customization
Environmental standards
In line with national standards Meet EU standards Customized environmental certification
Operating temperature range
0°C to 2000°C
Product Parameters
Product Details
Corporate Information
Service Guarantee
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