Description

Refractories, Fibers, Aluminosilicate is a high-temperature ceramic fiber material composed primarily of alumina and silica. This product is engineered for exceptional thermal stability, low thermal conductivity, and excellent resistance to chemical attack, making it a cornerstone material for demanding industrial insulation. It is essential for industries requiring reliable thermal management and structural integrity in extreme environments. Key users include manufacturers of furnaces, kilns, boilers, and high-temperature processing equipment across the metallurgical, petrochemical, and glass sectors.

Application

• High-Temperature Furnace & Kiln Linings: Primary insulation layer in steel, aluminum, and ceramic processing furnaces.
• Thermal Insulation Blankets & Modules: Manufacture of flexible blankets, boards, and folded modules for expansion joints and backup insulation.
• Fire Protection & Passive Fire Stopping: Used in fire doors, seals, and protective wraps for structural steel and cables.
• Industrial Boiler & Heater Insulation: Lining for boilers, reformers, and cracking units in power generation and petrochemical plants.
• Automotive & Aerospace Thermal Barriers: Heat shields and exhaust wrap components.
• Gasket & Packing Material: High-temperature seals and packing for industrial equipment.
• Reinforcement in Refractory Castables: Used as a fibrous reinforcement to improve the strength and thermal shock resistance of monolithic refractories.

Basic Information

Product Name	Refractories, Fibers, Aluminosilicate
CAS No.	142844-00-6
Molecular Formula	Al2O3·SiO2 (Variable)
Molecular Weight	N/A (Polymeric inorganic material)
Synonyms	Aluminosilicate Fiber; Ceramic Fiber; Refractory Ceramic Fiber (RCF); High-Temperature Insulation Wool (HTIW); Alumina-Silica Fiber; Kaolin Fiber; Mullite Fiber; Synthetic Vitreous Fiber (SVF); ASW (Alumina Silica Wool)
EINECS	Contact for details

Quality Control

Our aluminosilicate fibers are produced under a strict quality management system. Each batch is tested to ensure compliance with key performance parameters such as fiber diameter, shot content, chemical composition, and classification temperature. We adhere to relevant industry health and safety guidelines for man-made vitreous fibers (MMVF). Certificates of Analysis (COA) detailing chemical composition and physical properties are available upon request to support your material qualification and safety data sheet (SDS) requirements.

Storage

Preserve in original, unopened packaging in a dry, well-ventilated warehouse. Keep containers tightly closed to prevent moisture absorption and contamination from airborne particulates. Store away from incompatible materials. Follow all local and regional regulations for the storage of synthetic vitreous fibers.

Specification

Item	Specification
Al2O3 Content	40 - 55 %
SiO2 Content	45 - 60 %
Classification Temperature	1260°C - 1430°C
Fiber Diameter (Mean)	2 - 5 µm
Shot Content (Particles >44µm)	< 15 %
Bulk Density	64 - 200 kg/m³ (Variable by product form)
Thermal Conductivity (at 500°C)	0.12 - 0.20 W/(m·K)
Color	White

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.