LG Series Premium Lightweight High-Alumina Insulating Refractory Materials
Professional manufacturer of LG Series lightweight alumina refractory materials with superior thermal insulation, high-temperature resistance, and energy efficiency for industrial furnaces and kilns.
Key words:
lightweight refractory materials
alumina insulating bricks
thermal insulation refractories
high temperature insulation
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industrial furnace lining
kiln insulation
lightweight firebricks
alumina content refractory
thermal conductivity insulation
Classification:
Product Introduction
LG Series Premium Lightweight High-Alumina Insulating Refractory Materials
High Temperature Resistance
Operating temperatures up to 1400°C with excellent thermal stability and structural integrity
Superior Insulation
Ultra-low thermal conductivity (0.20-0.50 W/m·K) for maximum energy efficiency
Lightweight Design
Reduced structural load with bulk densities from 0.4 to 1.0 g/cm³
High Strength
Excellent cold crushing strength up to 3.92 MPa maintaining structural stability
Product Overview
The LG Series represents our premium range of lightweight alumina-based insulating refractory materials, engineered for superior thermal performance in high-temperature industrial applications. These advanced materials combine high alumina content (≥48%) with precisely controlled porosity to deliver exceptional insulation properties while maintaining structural integrity under extreme conditions.
Seven Precision-Engineered Grades Available
From LG-0.4 to LG-1.0, each grade is specifically formulated to meet distinct density and performance requirements, allowing optimal selection for your specific application needs.
Our proprietary manufacturing process ensures consistent quality and uniform properties across all grades, making these materials ideal for furnace linings, kiln insulation, thermal barriers, and energy-efficient refractory systems where weight reduction and thermal performance are critical.
Technical Specifications
Comprehensive performance data for all LG Series grades, tested according to international standards:
| Material Grade | LG-1.0 | LG-0.9 | LG-0.8 | LG-0.7 | LG-0.6 | LG-0.5 | LG-0.4 |
|---|---|---|---|---|---|---|---|
| Al₂O₃ Content (%) | ≥48 | ||||||
| Fe₂O₃ Content (%) | ≤2.0 | ||||||
| Bulk Density (g/cm³) | ≤1.0 | ≤0.9 | ≤0.8 | ≤0.7 | ≤0.6 | ≤0.5 | ≤0.4 |
| Cold Crushing Strength (MPa) | ≥3.92 | ≥3.43 | ≥2.94 | ≥2.45 | ≥1.96 | ≥1.47 | ≥0.78 |
| Thermal Conductivity at 350±25°C (W/m·K) | ≤0.50 | ≤0.45 | ≤0.35 | ≤0.35 | ≤0.30 | ≤0.25 | ≤0.20 |
| Maximum Service Temperature (°C) | 1400 | 1400 | 1400 | 1350 | 1350 | 1250 | 1250 |
*Maximum service temperature represents the temperature at which linear dimensional change does not exceed 2%
Industrial Applications
LG Series materials are extensively used across multiple high-temperature industries for their exceptional performance characteristics:
Steel & Metallurgy
Furnace linings, ladle insulation, electric arc furnace walls, reheat furnace backup insulation, and continuous casting equipment thermal barriers.
Petrochemical Industry
Cracking furnace insulation, reactor vessel linings, fired heater backup systems, and catalyst regenerator thermal protection.
Cement Manufacturing
Rotary kiln insulation, preheater vessel linings, clinker cooler insulation, and cement kiln backup refractory systems.
Glass Industry
Glass furnace crown insulation, regenerator chamber walls, annealing lehr insulation, and float glass furnace backup systems.
Power Generation
Boiler insulation, combustion chamber linings, flue gas duct insulation, and thermal power plant refractory systems.
Ceramic & Refractory
Kiln car construction, shuttle kiln insulation, tunnel kiln walls, and ceramic firing equipment thermal barriers.
Key Performance Features
Advanced engineering delivers superior performance across critical parameters:
Excellent Thermal Shock Resistance
Withstands rapid temperature changes without cracking or spalling, ensuring long service life in cycling applications.
Low Heat Storage Capacity
Reduced thermal mass enables faster heating and cooling cycles, improving energy efficiency and productivity.
Chemical Stability
High alumina content provides excellent resistance to acidic and neutral atmospheres in industrial environments.
Dimensional Stability
Minimal shrinkage and expansion under operating conditions maintains structural integrity over extended service periods.
Easy Installation
Lightweight design reduces installation time and structural support requirements, lowering overall project costs.
Energy Efficiency
Superior insulation properties significantly reduce fuel consumption and operating costs in high-temperature processes.
Partner with Industry Leaders
Hubei Zhongnai New Material Technology Co., Ltd. is your trusted partner for advanced refractory solutions. Our LG Series materials represent the cutting edge of lightweight insulating refractory technology, backed by comprehensive technical support and quality assurance.
Contact us today to discuss your specific application requirements and discover how our LG Series materials can optimise your high-temperature processes.
Hubei Zhongnai New Material Technology Co., Ltd.
Professional Manufacturer of Advanced Refractory Materials
Committed to Innovation, Quality, and Customer Success
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For more product information or technical support, please contact us
Contact Information
Contact:+86-19171489999
Address: Yangzhai Town Metallurgical Industrial Park, Guangshui City, Hubei Province
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