Alumina Silicate Refractory Fiber Blanket
Ruitai Lianxin’s ceramic fiber blankets are made from high-purity alumina and silica raw materials, melted at approximately 1700 °C, and then purged with high-pressure air or steam to fiberize the melt. Finally, the collected fibers are needle-punched into a uniform and continuous felt layer. The needle-punching process creates a mechanical interlock between the fibers, giving the fiber blanket excellent tensile strength and durability, and eliminating the need for organic adhesives that would burn out during the initial heating process.
Features of Ceramic Fiber Blanket
Alumina silicate fiber blankets were chosen over rigid insulation materials because they combine reliable high-temperature performance with flexible installation methods, allowing for faster installation and wrapping of materials with complex shapes. The following key characteristics are crucial for achieving energy savings, reduced downtime, and extended lining life in practical furnace and piping applications:
- Low thermal conductivity — ≤0.153 W/(m·K), reducing heat loss and energy costs in furnace and piping systems.
- Excellent thermal shock resistance — Unlike ordinary refractory materials, it can withstand rapid temperature cycling without cracking or peeling.
- Lightweight and flexible — Easy to cut, wrap, and install on furnace bodies with complex geometries; reduces the structural load on the furnace steel structure.
- Good chemical stability — Resistant to most acids, alkalis, and oils (except hydrofluoric acid, strong phosphoric acid, and high-temperature concentrated alkalis).
- Low heat storage — Less heat absorbed during operation and less heat released during shutdown, thus improving furnace thermal efficiency.
Widespread Application of Ceramic Fiber Blanket
Alumina silicate refractory fiber blankets are widely used in high-temperature industrial facilities, serving as both primary hot-face linings and auxiliary insulation layers. Suitable for various heating equipment, they reduce heat loss and protect metal structures from heat damage.
Used for insulation of aluminum smelting furnaces and holding furnaces, copper converters, nickel smelting furnaces, and zinc distillation kettles.
Used for backing insulation of refractory bricks or castables in steel ladles, tundishes, and electric arc furnace roofs; insulation of furnace doors and burner gaskets.
Used for boiler wall insulation, duct insulation, turbine shell insulation, and chimney/flue lining insulation in coal-fired and waste heat power plants.
Used for insulation of reforming units, cracking furnaces, ethylene heaters, and high-temperature reactors.
Ceramic Fiber Blanket Parameter Table
Alumina-silicate Refractory Fiber Blanket
| LX-PT-02 | LX-BZ-02 | LX-GC-02 | LX-GL-02 | LX-DG-02 | LX-HG-A02 | LX-HG-B02 | |
| common | standard | High purity | high alumium | zirconia-alumium | zirconium | chromium | |
| Classification Temperature ℃ | 1050 | 1260 | 1260 | 1350 | 1350 | 1430 | 1500 |
| Bulk density kg/m³ | 96/128(Special specifications can be customized) | ||||||
| Heating wire shrink% ( heat preservation 2 4 h ) | ≤4(950℃) | ≤4(1000℃) | ≤3(1100℃) | ≤3(1200℃) | ≤3(1250℃) | ≤3(1350℃) | ≤3(1400℃) |
| Thermal conductivity w/(m.k) | ≤0.153 | ≤0.153 | ≤0.153 | ≤0.153 | ≤0.153 | ≤0.153 | ≤0.153 |
| Tensile strength Mpa | ≤0.07 | ≤0.07 | ≤0.07 | ≤0.04 | ≤0.07 | ≤0.07 | ≤0.07 |
| Al₂O₃% | 41-42 | 43-44 | 45-47 | 52-55 | 41-45 | 37-40 | 42-44 |
| Al₂O₃%+SiO₂% | 96 | 97 | 98 | 99 | |||
| ZrO₂% | 5-7 | 15-17 | |||||
| Cr₂O₃% | 2-3 | ||||||
| Al₂O₃%+SiO₂%+ZrO₂%+Cr₂O₃% | 99 | 99 | 99 | ||||
| Specification mm | (3600/4500/5000/7200)×(610/1220)×(6-60) | ||||||
Why Choose Ruitai Lianxin Ceramic Fiber Blanket?
There are numerous ceramic fiber blanket suppliers, but what truly reduces project risk is consistent product quality, on-time delivery, and rapid after-sales support.
Factory Direct Sales
Offering our best factory-direct prices, with highly competitive unit prices for your refractory brick bulk orders.
Technical Support
A professional refractory engineering team provides free lining design consultation and installation guidance.
Fast Delivery
Standard products can be shipped immediately from stock; customized orders are produced within 15-30 working days.
One-Stop Supply
Shipped in combination with refractory bricks, castables, and anchors, reducing procurement and logistics costs.
Ceramic Fiber Blanket Price
The price of alumina silicate refractory fiber blankets depends primarily on three factors: grade, density, and thickness, as well as the order quantity. High-temperature grades with added zirconium or chromium have higher raw material costs, while standard 1260 °C refractory fiber blankets offer the best cost-performance ratio for most furnace and piping applications.
As a direct refractory materials manufacturer, we offer factory-direct pricing. Bulk orders of the same grade and specifications are eligible for volume discounts. We also provide consolidated shipping options for orders placed with refractory bricks, ceramic fiber boards, or castables to help customers reduce overall logistics costs.
Contact us with your required grade, size, and quantity for a free quote—we typically respond within 24 hours.
Ruitai Lianxin Refractory Brick Customer Case
Ruitai Lianxin is a refractory materials manufacturer with over 20 years of experience in high-temperature insulation and refractory lining solutions. We provide ceramic fiber blankets, ceramic fiber boards, refractory bricks, castables, and complete kiln lining solutions to customers in the metallurgical, petrochemical, power, cement, and ceramic industries in more than 50 countries.
Indian | High Alumina Brick | Ladle Refractory Fire Bricks
Pakistan | Corundum Refractory Fire Brick | Rotary Kiln Lining
Indian Customers | High Alumina Refractory Fire Brick | Cement Kiln
Uzbekistan | Magnesium Aluminum Chromium Spinel Brick | Rotary Kiln
Syria | Refractory Cement | Blast Furnace Refractory Materials
Russia | Magnesium Chrome Brick | Cement Kiln Fire Bricks
Contact Us
If you are looking for a reliable refractory brick manufacturer or supplier, or need wholesale services for ceramic fiber blankets and other insulation materials, contact us today for a free quote—please provide your kiln specifications, required grade, and estimated quantity. Our team will reply within 24 hours with competitive pricing and technical advice.