High Alumina refractory brick special shaped spalling resistant low creep LZ-48 LZ-55 LZ-60 LZ-65 LZ-70 LZ-75 LZ-80 SK36 T-38 T-39
Hubei Zhongnai New Material Technology specializes in high-alumina brick manufacturing with Al₂O₃ content 48-85%, featuring special shaped designs, anti-spalling properties, and low creep performance for industrial applications.
Key words:
special shaped
spalling resistant
low creep
Refractory materials for cement industry
refractoriness
High Alumina refractory brick
high alumina special shaped brick
spalling resistant high alumina bricks
low creep high alumina brick
anti-spalling technology
low creep performance
special shaped refractory
alumina content
thermal shock resistance
industrial furnace
Classification:
Product Introduction
Hubei Zhongnai New Material Technology Co., Ltd.
Professional High-Alumina Brick Solutions
Advanced Technical Features
Hubei Zhongnai New Material Technology Co., Ltd. pioneers in developing advanced refractory solutions with cutting-edge technology including special shaped designs, anti-spalling properties, and low creep performance for extreme industrial environments.
Custom engineered shapes including T-38, T-39, arch bricks, wedge bricks, and complex geometries for precise furnace construction and optimal thermal performance.
Advanced anti-spalling technology provides exceptional thermal shock resistance, preventing surface deterioration under rapid temperature cycling conditions.
Superior dimensional stability under sustained high-temperature load conditions, maintaining structural integrity throughout extended service life.
Product Overview
High-alumina bricks are neutral refractory materials with Al₂O₃ content of 48% or greater, manufactured from high-quality bauxite raw materials and fired at elevated temperatures. Hubei Zhongnai New Material Technology Co., Ltd. specializes in producing multiple series of high-alumina brick products featuring special shaped designs, anti-spalling properties, and low creep characteristics to meet diverse industrial kiln requirements.
What is High-Alumina Brick?
High-alumina brick is a neutral refractory material characterized by Al₂O₃ content of 48% or greater. These advanced ceramic materials are manufactured from high-quality bauxite through precision firing processes at temperatures of 1500-1600°C, resulting in exceptional thermal stability, mechanical strength, and chemical resistance for industrial applications.
Key Performance Characteristics:
- Thermal Performance: Refractoriness up to 1770°C with excellent load-bearing capacity
- Mechanical Properties: Cold compressive strength reaching 70MPa for structural applications
- Chemical Resistance: Superior corrosion resistance to acidic and neutral slags
- Dimensional Stability: Low creep rates under sustained high-temperature loads
Advanced Equipment: Equipped with 400T-1000T large press systems and two 192-meter-long high-temperature tunnel kilns
Strict Quality Control: Comprehensive quality control system with detailed test reports for each production batch
Professional Service: Technical consultation and selection guidance to ensure optimal performance
Advanced Technology: Special shaped designs, anti-spalling technology, and low creep performance capabilities
Enhanced LZ Series Technical Specifications
Hubei Zhongnai New Material Technology Co., Ltd. LZ series products utilize premium bauxite raw materials with precision firing at 1500-1600°C to ensure exceptional technical performance including enhanced anti-spalling properties and low creep characteristics.
| Product Model | Al₂O₃ Content (%) | Apparent Porosity (%) | Cold Compressive Strength (MPa) | 0.2MPa Load Softening Temperature (°C) | Permanent Linear Change (%) | Thermal Shock Resistance (cycles) | Creep Rate (%) |
|---|---|---|---|---|---|---|---|
| LZ-80 Anti-Spalling | ≥80 | ≤21 | ≥70 | ≥1530 | -0.4~-0.2 (1500°C×2h) | ≥25 | ≤0.15 (1400°C/2h) |
| LZ-75 Anti-Spalling | ≥75 | ≤24 | ≥60 | ≥1520 | -0.4~-0.2 (1500°C×2h) | ≥20 | ≤0.18 (1400°C/2h) |
| LZ-70 Low Creep | ≥70 | ≤24 | ≥55 | ≥1510 | -0.4~-0.1 (1450°C×2h) | ≥18 | ≤0.20 (1350°C/2h) |
| LZ-65 Low Creep | ≥65 | ≤24 | ≥50 | ≥1500 | -0.4~-0.1 (1450°C×2h) | ≥15 | ≤0.22 (1350°C/2h) |
| LZ-60 | ≥60 | ≤26 | ≥45 | ≥1430 | -0.4~-0.1 (1450°C×2h) | ≥12 | ≤0.25 (1350°C/2h) |
| LZ-55 | ≥55 | ≤22 | ≥45 | ≥1450 | -0.4~-0.1 (1450°C×2h) | ≥10 | ≤0.28 (1300°C/2h) |
| LZ-48 | ≥48 | ≤22 | ≥40 | ≥1420 | -0.4~-0.1 (1450°C×2h) | ≥8 | ≤0.30 (1300°C/2h) |
Hubei Zhongnai New Material Technology Co., Ltd. SK Series: Complete range from SK32 to SK40
International Standard Grade Marking - Professional Refractoriness Classification System
Rigorous Production Process Assurance - Exceptional Refractory Performance
Enhanced with special shaped options and anti-spalling technology
SK Series Complete Product Line
Hubei Zhongnai New Material Technology Co., Ltd. SK series utilizes internationally recognized grade designations, covering comprehensive specifications from SK32 to SK40. Each refractory brick undergoes rigorous production processes to ensure exceptional refractory performance, with options for special shaped designs and enhanced anti-spalling properties.
SK Series Main Specifications and Applications
| Series Model | Refractoriness (SK) | Main Technical Features | Typical Industrial Applications |
|---|---|---|---|
| SK32 | ≥32 | Basic refractory performance, economical and practical | General industrial furnace linings, flue gas ducts |
| SK34 | ≥34 | Clay refractory bricks, excellent thermal stability | Blast furnaces, iron melting furnaces, hot blast stoves |
| SK36 | ≥36 | Medium-high refractoriness, superior cost-performance | Steel ladles, steel casting systems, homogenizing furnaces |
| SK38 | ≥38 | High-grade refractory bricks, superior corrosion resistance | Electric arc furnaces, converters, melting furnaces |
| SK40 | ≥40 | Ultra-high refractoriness, extreme operating conditions | Critical components of high-temperature kilns |
SK-36 Series Detailed Technical Parameters
| Technical Parameter | SK-36 Specification | Test Method |
|---|---|---|
| Al₂O₃ Content (%) | ≥50-55 | XRF Analysis |
| Fe₂O₃ Content (%) | ≤2.5 | XRF Analysis |
| Refractoriness (SK) | ≥36 | ASTM C24 |
| 0.2MPa Load Softening Temperature (°C) | ≥1450 | ASTM C16 |
| Apparent Porosity (%) | ≤22 | ASTM C20 |
| Bulk Density (g/cm³) | ≥2.15-2.22 | ASTM C20 |
| Cold Compressive Strength (MPa) | ≥45 | ASTM C133 |
Special Shaped Refractory Solutions
Hubei Zhongnai New Material Technology Co., Ltd. offers comprehensive special shaped refractory solutions with precision manufacturing capabilities for complex furnace geometries, featuring enhanced anti-spalling properties and low creep performance.
- T-38 knife-edge brick: Circular furnace body + arched furnace top
- T-39 matching brick: Matches with T-19 and seven-point head
- Custom radius arch bricks for dome construction
- Anti-spalling arch bricks for thermal cycling resistance
- Rotary kiln lining systems with low creep properties
- Conical section applications with precise angles
- Thermal expansion compensation designs
- Spalling resistant wedge bricks for cycling conditions
- Arch corner brick: Special shapes such as T-T-63
- Grid brick: Specialized for gas flow in regenerators
- Key bricks with enhanced structural integrity
- Low creep corner bricks for load-bearing applications
Comprehensive Industrial Applications
Hubei Zhongnai New Material Technology Co., Ltd. high-alumina brick products, featuring special shaped designs, anti-spalling properties, and low creep characteristics, serve diverse high-temperature industrial applications, providing customers with reliable refractory solutions.
- Blast furnace: furnace body, furnace waist, and furnace belly components
- Hot blast stove: heat storage chamber and combustion chamber
- Electric furnace: arc furnace roof, furnace wall, and tapping holes
- Converter: lining systems and tapping hole construction
- Melting furnace: non-ferrous metal melting equipment
- Special shaped applications: arch and wedge bricks for complex geometries
- Cement kiln: rotary kiln burning zone and transition zone
- Glass kiln: melting pool, working pool, and heat storage chamber
- Ceramic kiln: tunnel kiln, shuttle kiln, and roller kiln
- Refractory kiln: production equipment for refractory materials
- Anti-spalling applications: thermal cycling resistance areas
- Low creep applications: load-bearing structural components
- Chemical furnace: cracking furnace, reforming furnace, heating furnace
- Reactor: high-temperature reaction equipment lining
- Pipeline: high-temperature process pipeline protection
- Burner: industrial burner component systems
- Special shaped components: custom designs for process equipment
- Boiler: combustion chamber, superheater, and reheater
- Turbine: high-temperature component protection
- Flue: boiler flue and dust collector inlet
- Dust collector: high-temperature dust removal equipment lining
- Low creep applications: structural components under sustained loads
Production Process & Quality Assurance
Hubei Zhongnai New Material Technology Co., Ltd. utilizes modern production facilities and comprehensive quality management systems, ensuring every batch meets the highest standards including special shaped precision, anti-spalling properties, and low creep performance.
• Calcined Alumina: Provides primary Al₂O₃ component for high-temperature performance
• Bonding Clay: Acts as binder with excellent molding properties
• Anti-spalling Additives: Enhance thermal shock resistance capabilities
Hubei Zhongnai maintains strict supplier quality standards
• Firing Temperature: High-temperature firing at 1500-1600°C
• Production Equipment: 400T-1000T large hydraulic press systems
• Kiln Equipment: Two 192-meter-long high-temperature tunnel kilns
• Special Shaping: Precision molding for complex geometries
Advanced equipment ensures consistent product quality
• Raw Material Inspection: Rigorous selection of high-quality materials
• Process Monitoring: Full-process quality control systems
• Product Testing: Detailed testing reports for each production batch
• Thermal Shock Testing: Anti-spalling performance verification
• Creep Testing: Dimensional stability under load assessment
ISO 9001:2015 Quality Management System Certified
• Professional technical consultation and product selection guidance
• Product recommendations based on specific operating conditions
• Special shaped design and manufacturing services
• Optimization guidance to ensure optimal performance results
Hubei Zhongnai professional technical team support
Professional Product Selection Guide
Hubei Zhongnai New Material Technology Co., Ltd. professional technical team provides precise selection guidance to ensure optimal product selection for different operating conditions, including special shaped requirements, anti-spalling needs, and low creep applications.
| Product Grade | Applicable Scenarios | Main Technical Advantages | Recommended Applications |
|---|---|---|---|
| LZ-80, LZ-75 Anti-Spalling | Highest temperature and most demanding conditions | Ultra-high refractoriness, exceptional mechanical strength, thermal shock resistance | Blast furnace body, electric furnace top, special shaped arch applications |
| LZ-70, LZ-65 Low Creep | Medium-high temperature zone with load requirements | Excellent cost-performance ratio, stable reliability, dimensional stability | Hot blast stove, converter, load-bearing structural components |
| LZ-60, LZ-55, LZ-48 | Medium temperature applications | Cost-effective solutions, widely applicable | General industrial furnaces, flue systems |
| SK40 | Extreme high-temperature operating conditions | Ultra-high refractoriness, ultimate performance | Critical components of high-temperature kilns |
| SK38 | Advanced refractory performance requirements | High refractoriness, superior corrosion resistance | Electric arc furnace, various melting furnaces |
| SK36 | Medium-high temperature professional applications | Professional design, stable performance | Steel ladles, steel casting systems |
| SK34 (Clay Brick) | High thermal stability requirements | Thermal shock resistance, economical and practical | Blast furnaces, iron melting furnaces, hot blast stoves |
| SK32 | Basic refractory performance requirements | Economic efficiency, reliable quality | General industrial furnace lining, flue systems |
| T-38, T-39 Special Shaped | Complex geometry masonry requirements | Flexible installation, strong adaptability, anti-spalling properties | Circular furnace body, arched furnace top applications |
Choose Hubei Zhongnai New Material Technology Co., Ltd.
🔥 Professional Refractory Materials Manufacturer - Industry Leader in High-Alumina Brick Technology
🏭 Advanced Production Equipment - 400T-1000T Large Press Systems + Two 192-Meter Tunnel Kilns
✅ Rigorous Quality Assurance - Comprehensive Quality Control + Detailed Inspection Reports
🎯 Professional Technical Services - Selection Guidance + Operating Condition Analysis + Installation Support
🌟 Exceptional Product Performance - Refractoriness 1770°C+ | Cold Compressive Strength 70MPa+
📋 Complete Product Line - Full LZ Series + Complete SK32-SK40 Series + Professional Special Shaped Solutions
🔧 Advanced Technology Features - Special Shaped Designs + Anti-Spalling Technology + Low Creep Performance
🛡️ Superior Performance Capabilities - Thermal Shock Resistance up to 25 cycles + Dimensional Stability Under Load
We provide customers with professional technical consultation and selection guidance to ensure optimal product solutions for your specific requirements.
Choose Hubei Zhongnai New Materials - Choose a Reliable Refractory Materials Partner!
Frequently Asked Questions
What are the key advantages of Hubei Zhongnai's high-alumina bricks compared to standard refractory materials?
Our high-alumina bricks feature advanced anti-spalling technology with thermal shock resistance up to 25 cycles, low creep performance for dimensional stability under load, and special shaped manufacturing capabilities. With Al₂O₃ content ranging from 48-85% and cold compressive strength up to 70MPa, our products provide superior performance, extended service life, and cost-effectiveness compared to standard materials.
How do I select the appropriate high-alumina brick grade for my industrial application?
Product selection depends on your specific operating conditions: LZ-80/LZ-75 for extreme high-temperature applications with anti-spalling requirements, LZ-70/LZ-65 for load-bearing applications requiring low creep performance, SK40 for ultra-high temperature conditions, SK38 for advanced refractory performance, and SK36 for medium-high temperature professional applications. Our technical team provides free consultation for optimal selection based on your furnace type, operating temperature, and performance requirements.
What is the difference between anti-spalling and low creep high-alumina bricks?
Anti-spalling high-alumina bricks (LZ-80, LZ-75) are engineered for exceptional thermal shock resistance, withstanding rapid temperature changes with up to 25 thermal cycles. Low creep high-alumina bricks (LZ-70, LZ-65) focus on dimensional stability under sustained high-temperature loads, with creep rates ≤0.22%. Anti-spalling bricks are ideal for applications with frequent thermal cycling, while low creep bricks are essential for load-bearing structural applications.
What quality control measures does Hubei Zhongnai implement for high-alumina brick production?
We maintain ISO 9001:2015 certification with comprehensive quality control including: rigorous raw material inspection using premium bauxite and calcined alumina, advanced production with 400T-1000T press systems and 192-meter tunnel kilns, full-process monitoring with detailed testing reports for each batch, thermal shock testing for anti-spalling verification, and creep testing for dimensional stability assessment. Our quality management system ensures consistent product performance and reliability.
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Contact Information
Contact:+86-19171489999
Address: Yangzhai Town Metallurgical Industrial Park, Guangshui City, Hubei Province
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