Ceramic Fiber Bulks
High-performance ceramic fibre block series, made of selected raw materials and precision technology, with ultra-low impurity content, high-purity components and excellent thermal insulation performance, suitable for high temperature environment above 1260℃. They are particularly suitable for lining and insulation applications in industrial furnaces, aerospace and special high temperature equipment. With controllable fibre diameters, strict shot content standards and a wide range of melting temperature grades, it meets the individual needs of a wide range of demanding working conditions.
- Main Composition: Al2O3+SiO2≥96%
- Application: Industrial Furnaces Insulation Layer
- Raw Material: Bulk Fibers
- Color: White
- Classification Temperature: 1260℃
- Capacity: 3000 MT per month
- Package: Export Wooden Pallets and Carton Case
High quality refractory bricks
Product Details
Ceramic Fiber Bulks for Sale
Fireramo’s Ceramic Fibre Bulk product range covers STD RCF Bulk, HP RCF Bulk, TEXTILE Bulk, CHOPPED Bulk and HZ RCF Bulk grades, which are designed to provide superior high temperature thermal insulation solutions for different industries and applications. These blocks are made from selected high purity ceramic fibres with a precisely controlled fibre diameter of 3 to 5 microns, ensuring superior refractory and thermal insulation properties.
Characteristics of Fireramo’s ceramic fibre bulk
High purity: Fireramo’s ceramic fibre bulks contain from ≥44% to ≥45% Al2O3 in all grades, and ≥99% Al2O3+SiO2 in the HP RCF Bulk and TEXTILE Bulk grades, with some containing ≥15% ZrO2, which enhances their high-temperature oxidation resistance and mechanical strength.
Low impurity content: The total content of Fe2O3, Na2O and K2O is strictly controlled to reduce potential low-temperature reduction reaction and melting point drop, which ensures that the ceramic fibre bulks remain stable at high temperatures.
Excellent thermal insulation performance: As the temperature rises, the ceramic fibre bulk shows excellent thermal resistance, with the thermal conductivity as low as 0.06 W/m-k at 200°C, and increasing to only 0.15 W/m-k even at 600°C, which fully reflects its efficient thermal insulation performance.
Standardised sizes and controlled particle size: All grades have a bulk cut length of 203 mm (8 inches) and a controlled pellet content, ensuring consistency and reliability in the construction of the insulation.
Versatile application temperatures: All grades of fibre blocks are stable up to a classification temperature of 1260°C, with some grades (e.g. HP RCF Bulk and TEXTILE Bulk) having higher melting temperatures of up to 1575°C, and HZ RCF Bulk even up to 1750°C.
Ceramic fibre block applications
Thermal insulation of industrial furnaces, heating equipment and lining of high-temperature pipes.
Construction of high temperature insulation and fire barriers in metallurgy, chemical and power industries.
High-temperature component protection and thermal insulation encapsulation in aerospace and aviation fields.
Heat insulation construction of high temperature experimental equipment, heat treatment furnace and other special equipment.
Ceramic Fiber Bulks Specifications
| Ceramic Fiber Bulks | STD RCF Bulk | HP RCF Bulk | TEXTILE Bulk | CHOPPED Bulk | HZ RCF Bulk |
|---|---|---|---|---|---|
| Fiber Diameter（um） | 3~5 | ||||
| Shot content(Φ≥0.212mm)（%） | ≤15 | ≤15 | ≤12 | （Φ≥100mesh）≤10 | ≤12 |
| Chopped Length mm(inch) | 203(8) | 203(8) | 203(8) | 203(8) | 203(8) |
| Al2O3 | ≥44 | ≥45 | ≥45 | ≥45 | ≥34 |
| Al2O3+SiO2 | ≥96 | ≥99 | ≥99 | ≥99 | ≥84 |
| ZrO2 | / | / | / | / | ≥15 |
| Fe2O3 | ＜0.5 | ＜0.5 | ≤0.3 | ≤0.3 | |
| Na2O+K2O+Fe2O3 | ＜0.9 | ＜0.9 | ＜0.9 | ＜0.9 | ＜0.9 |
| Classification Temperature（℃） | 1260 | 1260 | 1260 | 1260 | 1260 |
| Melting Temperature（℃） | 1425 | 1575 | 1575 | 1575 | 1750 |
| Thermal conductivity（W/m.k） | |||||
| 200℃ | 0.06 | 0.07 | 0.06 | 0.06 | 0.075 |
| 400℃ | 0.09 | 0.1 | 0.1 | 0.1 | 0.11 |
| 500℃ | 0.118 | 0.118 | 0.118 | 0.118 | 0.14 |
| 600℃ | 0.15 | 0.15 | 0.15 | 0.15 | 0.168 |
Specializing in refractory materials for over 20 years, we provide professional refractory solutions for the global high temperature industry.
