Luoyang Anjing Intelligence Equipment are a global leader in high-temperature electric furnaces

FR Ultra-High Temperature Polycrystalline Alumina Fiberboard
PRODUCT PARAMETERS
Description
FR Ultra-High Temperature Polycrystalline Alumina Fiberboard
FR ultra-high temperature polycrystalline alumina fiberboard uses polycrystalline alumina fiber as the main raw material, combined with fillers and adhesives, and is formed by suction and pressure bonding. Compared with commercially available calcined fiber products, it has the characteristics of good processability, low thermal conductivity, and low density. The FR1800 type fiberboard and irregularly shaped products can meet the requirements of a maximum temperature of 1800℃ and a long-term temperature of 1750℃. It has replaced imported products in many kilns, demonstrating good energy-saving effects and reducing operating costs.
Product Features
- Ultra-high Temperature Performance, Import Replacement
FR1800 fiberboard meets the requirements for use up to 1800℃ and long-term operation at 1750℃. It has successfully replaced imported products in multiple kilns, demonstrating excellent energy-saving effects and significantly reducing operating costs.
- Low Thermal Conductivity, Significant Energy Savings
Made using a suction-compression molding process, it has a low thermal conductivity (0.14~0.2 W/(m·K) at 1200℃), low density (300-700 kg/m³), and low heat storage, resulting in significant energy savings.
- Excellent Thermal Stability and Thermal Shock Resistance
The product exhibits excellent thermal stability, low heating shrinkage, and outstanding thermal shock resistance, able to withstand drastic temperature changes without cracking or peeling.
- Good Processability and Convenient Construction
Compared to commercially available calcined fiber products, it has excellent processability, allowing for easy cutting, drilling, and other processing operations. Custom-shaped products can be produced according to user requirements.
- Strong Chemical Stability and Long Service Life
It exhibits stable chemical properties, strong corrosion resistance, good wind erosion resistance, and a long service life.

| Parameter | KD-FR-1000 | KD-FR-1260 | KD-FR-1420 | KD-FR-1500 | KD-FR-1600 | KD-FR-1700 | KD-FR-1800 | KD-FR-1850 |
|---|---|---|---|---|---|---|---|---|
| Max. service temperature (°C) | 1000 | 1260 | 1420 | 1500 | 1600 | 1700 | 1800 | 1850 |
| Long-term service temperature (furnace temp.) (°C) | 950 | 1200 | 1350 | 1450 | 1550 | 1650 | 1750 | 1800 |
| Bulk density (kg·cm⁻³) | 300-600 | 300-600 | 400-700 | 400-700 | 400-700 | 400-700 & 450-700 | 450-700 | 500-700 |
| Thermal conductivity (W·(m·K)⁻¹) | 0.14 | 0.145 | 0.155 | 0.15 | 0.155 | 0.16 | 0.17 | 0.2 |
| Linear shrinkage on heating (%) | ||||||||
| at 1000°C | ≤1 | / | / | / | / | / | / | / |
| at 1200°C | ≤0.5 | ≤0.2 | ≤0.2 | ≤0.2 | ≤0.2 & ≤0.3 | ≤0.3 | ≤0.3 | ≤0.8 |
| at 1400°C | / | / | ≤1 | ≤0.2 | ≤0.2 | ≤0.2 | ≤0.2 | ≤0.5 |
| at 1500°C | / | / | / | ≤1 | ≤0.2 | ≤0.2 | ≤0.2 | ≤0.5 |
| at 1600°C | / | / | / | / | ≤2 | ≤0.3 | ≤0.3 | ≤0.8 |
| at 1700°C | / | / | / | / | / | ≤2 | ≤0.6 | ≤0.6 |
| at 1800°C | / | / | / | / | / | / | ≤2 | ≤0.8 |
Application Areas
- High-Temperature Electric Furnace Linings: Used as insulation material for the linings of various high-temperature electric furnaces and experimental electric furnaces.
- Tunnel Kilns and Roller Kilns: Used as lining material and insulation layer for tunnel kilns and roller kilns.
- Instrument and Equipment Heating Devices: Used as insulation and electrical insulation material for heating devices in instruments and equipment.
- Iron and Steel Metallurgy Industry: High-temperature linings for forging furnaces, heating furnaces, heat treatment furnaces, and continuous annealing furnaces for silicon steel.
- Petrochemical Industry: Insulating linings for cracking furnaces, combustion furnaces, etc.
- Sapphire Furnace Linings: Sapphire furnace back linings and sapphire annealing furnace linings.
- High-Temperature Sealing Components: Insulating sealing components for various high-temperature parts.
Company Profile
A professional enterprise specializing in heat treatment technology services and the R&D, manufacturing, and sales of high-temperature electric furnaces.
The company focuses on developing high-temperature electric furnaces covering a full temperature range of -100℃ to 2600℃. Its products include experimental electric furnaces, vacuum atmosphere furnaces, industrial kilns, and medium-frequency induction heating equipment. Main products include box furnaces, tube furnaces, lifting furnaces, pusher kilns, bogie furnaces, rotary kilns, tunnel kilns, and various specialized medium-frequency furnaces.
The company adheres to technological innovation and has passed ISO9001 and EU CE certifications. It owns 21 registered trademarks, 29 patents, and 27 software copyrights.






Payment Methods
TT
Shipment Methods
The electric furnace is packaged in thThe electric furnace is packaged in three layers: first wrapped in foam paper, then wrapped in plastic film, and finally packed in a wooden crat.
Frequently Asked Questions (FAQ)
- What are the maximum operating temperature and long-term operating temperature of the FR1800 product?
The maximum operating temperature of the FR1800 fiberboard is 1800℃, and the long-term operating temperature is 1750℃.
- What is the thermal conductivity of the product?
The thermal conductivity is low. Taking FR-1800 as an example, the thermal conductivity at 1200℃ is approximately 0.17 W/(m·K), providing significant thermal insulation.
- Does the product support customized irregular shapes?
Yes. Production and processing can be carried out according to the shape, size, and density required by the user, with high dimensional accuracy and precise shape.
- Does the product shrink after high temperature?
The product has minimal heating line change and low high-temperature shrinkage. For example, the shrinkage rate of FR-1000 is ≤0.2% under 1000℃×24h conditions.
- Is the product easy to process and install?
The product is tough and easy to cut. It can be cut and drilled using conventional tools, making construction convenient and quick.
FR Ultra-High Temperature Polycrystalline Alumina Fiberboard
FR ultra-high temperature polycrystalline alumina fiberboard uses polycrystalline alumina fiber as the main raw material, combined with fillers and adhesives, and is formed by suction and pressure bonding. Compared with commercially available calcined fiber products, it has the characteristics of good processability, low thermal conductivity, and low density. The FR1800 type fiberboard and irregularly shaped products can meet the requirements of a maximum temperature of 1800℃ and a long-term temperature of 1750℃. It has replaced imported products in many kilns, demonstrating good energy-saving effects and reducing operating costs.
Product Features
- Ultra-high Temperature Performance, Import Replacement
FR1800 fiberboard meets the requirements for use up to 1800℃ and long-term operation at 1750℃. It has successfully replaced imported products in multiple kilns, demonstrating excellent energy-saving effects and significantly reducing operating costs.
- Low Thermal Conductivity, Significant Energy Savings
Made using a suction-compression molding process, it has a low thermal conductivity (0.14~0.2 W/(m·K) at 1200℃), low density (300-700 kg/m³), and low heat storage, resulting in significant energy savings.
- Excellent Thermal Stability and Thermal Shock Resistance
The product exhibits excellent thermal stability, low heating shrinkage, and outstanding thermal shock resistance, able to withstand drastic temperature changes without cracking or peeling.
- Good Processability and Convenient Construction
Compared to commercially available calcined fiber products, it has excellent processability, allowing for easy cutting, drilling, and other processing operations. Custom-shaped products can be produced according to user requirements.
- Strong Chemical Stability and Long Service Life
It exhibits stable chemical properties, strong corrosion resistance, good wind erosion resistance, and a long service life.

| Parameter | KD-FR-1000 | KD-FR-1260 | KD-FR-1420 | KD-FR-1500 | KD-FR-1600 | KD-FR-1700 | KD-FR-1800 | KD-FR-1850 |
|---|---|---|---|---|---|---|---|---|
| Max. service temperature (°C) | 1000 | 1260 | 1420 | 1500 | 1600 | 1700 | 1800 | 1850 |
| Long-term service temperature (furnace temp.) (°C) | 950 | 1200 | 1350 | 1450 | 1550 | 1650 | 1750 | 1800 |
| Bulk density (kg·cm⁻³) | 300-600 | 300-600 | 400-700 | 400-700 | 400-700 | 400-700 & 450-700 | 450-700 | 500-700 |
| Thermal conductivity (W·(m·K)⁻¹) | 0.14 | 0.145 | 0.155 | 0.15 | 0.155 | 0.16 | 0.17 | 0.2 |
| Linear shrinkage on heating (%) | ||||||||
| at 1000°C | ≤1 | / | / | / | / | / | / | / |
| at 1200°C | ≤0.5 | ≤0.2 | ≤0.2 | ≤0.2 | ≤0.2 & ≤0.3 | ≤0.3 | ≤0.3 | ≤0.8 |
| at 1400°C | / | / | ≤1 | ≤0.2 | ≤0.2 | ≤0.2 | ≤0.2 | ≤0.5 |
| at 1500°C | / | / | / | ≤1 | ≤0.2 | ≤0.2 | ≤0.2 | ≤0.5 |
| at 1600°C | / | / | / | / | ≤2 | ≤0.3 | ≤0.3 | ≤0.8 |
| at 1700°C | / | / | / | / | / | ≤2 | ≤0.6 | ≤0.6 |
| at 1800°C | / | / | / | / | / | / | ≤2 | ≤0.8 |
Application Areas
- High-Temperature Electric Furnace Linings: Used as insulation material for the linings of various high-temperature electric furnaces and experimental electric furnaces.
- Tunnel Kilns and Roller Kilns: Used as lining material and insulation layer for tunnel kilns and roller kilns.
- Instrument and Equipment Heating Devices: Used as insulation and electrical insulation material for heating devices in instruments and equipment.
- Iron and Steel Metallurgy Industry: High-temperature linings for forging furnaces, heating furnaces, heat treatment furnaces, and continuous annealing furnaces for silicon steel.
- Petrochemical Industry: Insulating linings for cracking furnaces, combustion furnaces, etc.
- Sapphire Furnace Linings: Sapphire furnace back linings and sapphire annealing furnace linings.
- High-Temperature Sealing Components: Insulating sealing components for various high-temperature parts.
Company Profile
A professional enterprise specializing in heat treatment technology services and the R&D, manufacturing, and sales of high-temperature electric furnaces.
The company focuses on developing high-temperature electric furnaces covering a full temperature range of -100℃ to 2600℃. Its products include experimental electric furnaces, vacuum atmosphere furnaces, industrial kilns, and medium-frequency induction heating equipment. Main products include box furnaces, tube furnaces, lifting furnaces, pusher kilns, bogie furnaces, rotary kilns, tunnel kilns, and various specialized medium-frequency furnaces.
The company adheres to technological innovation and has passed ISO9001 and EU CE certifications. It owns 21 registered trademarks, 29 patents, and 27 software copyrights.






Payment Methods
TT
Shipment Methods
The electric furnace is packaged in thThe electric furnace is packaged in three layers: first wrapped in foam paper, then wrapped in plastic film, and finally packed in a wooden crat.
Frequently Asked Questions (FAQ)
- What are the maximum operating temperature and long-term operating temperature of the FR1800 product?
The maximum operating temperature of the FR1800 fiberboard is 1800℃, and the long-term operating temperature is 1750℃.
- What is the thermal conductivity of the product?
The thermal conductivity is low. Taking FR-1800 as an example, the thermal conductivity at 1200℃ is approximately 0.17 W/(m·K), providing significant thermal insulation.
- Does the product support customized irregular shapes?
Yes. Production and processing can be carried out according to the shape, size, and density required by the user, with high dimensional accuracy and precise shape.
- Does the product shrink after high temperature?
The product has minimal heating line change and low high-temperature shrinkage. For example, the shrinkage rate of FR-1000 is ≤0.2% under 1000℃×24h conditions.
- Is the product easy to process and install?
The product is tough and easy to cut. It can be cut and drilled using conventional tools, making construction convenient and quick.








