Fireclay Insulating Refractory Bricks are highly effective thermal insulation products made from high-quality fireclay as the primary raw material. With an Al2O3 content ranging from 30%-48%, these bricks are designed to provide excellent thermal insulation and withstand extreme temperatures up to 1350°C.
Manufactured using a mix of fireclay, clay clinker, binders, and sawdust, the bricks are processed through precise batching, molding, drying, and sintering stages. These fireclay insulating bricks are widely used in industrial furnaces, kilns, and other thermal equipment to effectively isolate heat and reduce energy loss.
Physicochemical Parameters of Lightweight Clay Bricks
| Item/Grade | NG140-1.5 | NG135-1.3 | NG135-1.2 | NG130-1.0 | NG125-0.8 | NG120-0.6 | NG115-0.5 |
|---|---|---|---|---|---|---|---|
| Bulk Density (g/cm³) | ≤ 1.5 | ≤ 1.3 | ≤ 1.2 | ≤ 1.0 | ≤ 0.8 | ≤ 0.6 | ≤ 0.5 |
| Cold Crushing Strength (MPa) | ≥ 6 | ≥ 5 | ≥ 4.5 | ≥ 3.5 | ≥ 2.5 | ≥ 1.3 | ≥ 1.0 |
| Thermal Conductivity (W/m·K) | ≤ 0.65 | ≤ 0.55 | ≤ 0.50 | ≤ 0.40 | ≤ 0.35 | ≤ 0.25 | ≤ 0.23 |
| Permanent Linear Change (%) | -2 to +1 | -2 to +1 | -2 to +1 | -2 to +1 | -2 to +1 | -2 to +1 | -2 to +1 |
Product Features
- High Refractoriness: With a refractoriness rating of up to 1350°C, these bricks can maintain structural integrity under extreme heat, making them ideal for high-temperature applications.
- Low Thermal Conductivity: Thermal conductivity ranges from 0.23–0.65 W/m·K, which ensures low heat transfer and high thermal efficiency.
- Versatile Bulk Density: Available in a range of densities, from 0.5 g/cm³ to 1.5 g/cm³, making them suitable for different applications, including thermal insulation in furnaces and kilns.
- Cold Crushing Strength: Strength levels from 0.8–6 MPa ensure the bricks’ durability and performance under mechanical stress.
- Energy Efficient: Fireclay insulation bricks significantly reduce energy loss in kilns and furnaces by providing superior insulation, improving operational efficiency.
- Environmentally Friendly: Made from natural clay, these bricks are safe, non-toxic, and contribute to a sustainable environment.
Applications
Fireclay Insulating Refractory Bricks are designed for high-performance thermal insulation in a variety of industries, including:
- Metallurgical Industry: Ideal for use in high-temperature kilns, melting furnaces, and heating furnaces to improve energy efficiency and reduce heat loss.
- Glass Industry: Used in glass melting furnaces and glass storage chambers to maintain stable temperatures and enhance production efficiency.
- Petrochemical Industry: Effective as the thermal insulation layer in reactors, distillation towers, and other equipment where heat retention is essential.
- Electric Power Industry: Commonly used in boilers, chimneys, and other power plant components to enhance heat retention and improve energy efficiency.
- Ceramic Industry: Used in ceramic kilns and storage chambers to ensure optimal thermal management during the firing process.
Customization Services
At Xintai Refractory, we understand that every application is unique. That’s why we offer customization options for Fireclay Insulating Refractory Bricks:
- Custom Sizes: Tailored to your furnace or kiln specifications.
- Special Shapes: We can produce bricks in various forms, including arches and anchor bricks.
- Performance Adjustments: Need specific thermal conductivity or strength properties? We can modify the material to meet your exact needs.
Packing and Shipping Details
- Durable Packaging: We ensure your bricks are safely packed to prevent damage during transit, using eco-friendly and secure packaging materials.
- Bulk Orders: Larger shipments are palletized for easy handling.
- Reliable Logistics: We partner with trusted international logistics companies to ensure your order reaches you on time.
- Delivery Time: Typically ships within 15–30 working days, depending on order size and customization.
About Xintai Refractory
With over 20 years of industry experience, Xintai Refractory is a trusted manufacturer of high-quality refractory products, including Fireclay Insulating Refractory Bricks. Our products are widely used in industries such as steel, cement, glass, petrochemical, and ceramics worldwide.
For high-performance, cost-effective Fireclay Insulating Refractory Bricks, contact Xintai Refractory today. Our team is ready to provide tailored solutions to optimize energy efficiency and reduce operational costs. Get in touch for a customized quote, consultation, or to order samples.
