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Energy-Saving Mullite Insulation Bricks from China Suppliers - High-Quality Factory Refractory Solutions
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Energy-Saving Mullite Insulation Bricks from China Suppliers - High-Quality Factory Refractory Solutions

Mullite insulation brick, primarily composed of mullite (3Al₂O₃·2SiO₂), is an advanced refractory solution with low thermal conductivity and exceptional chemical stability. This heat-resistant insulation brick is extensively used across various industries, including metallurgy, ceramics, glass, and petrochemicals. As a leading supplier in China, our factory produces high-quality mullite insulation bricks that significantly reduce annual fuel expenses while dramatically extending the service life of kilns. Choose our mullite insulation bricks for a cost-effective energy-saving option in your production processes
  • Item: Mullite Insulation Brick
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Product Details

Core Advantages

Outstanding Energy Conservation & Insulation

Thermal conductivity as low as 0.15 W/(m·k) (at 400℃). Uniform internal microporous structure efficiently blocks heat, reducing furnace loss and boosting production efficiency.

Exceptional High-Temperature & Corrosion Resistance

Containing 37%-77% Al₂O₃ with strict impurity control. Withstands acidic/alkaline media and reducing atmospheres, ideal for harsh industrial environments.

Green & Eco-Friendly Performance

Produced from natural mineral materials with no harmful emissions. Lightweight design (0.5-1.35 g/cm³) reduces furnace load and ensures safe equipment operation.

Product Parameters

Mullite Insulation Brick
JM23 JM26 JM28
42 42 45 45 55 55 60 60
1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
0.5 0.6 0.8 1.0 0.8 1.0 1.0 1.2
1.0 1.5 1.8 2.5 2.0 2.5 2.5 3.0
1260 1260 1300 1300 1400 1400 1450 1450
0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2
≤0.16 ≤0.20 0.25 0.30 0.25 0.30 0.30 0.45

Detailed Application Scenarios

01 Metallurgy Industry

Suited for blast furnace hot blast stoves and sinter cooling equipment. Endures 800-1200℃ shocks with wear resistance 1.5x higher than ordinary castables, improving cooling efficiency by 5%-8%.

02 Ceramics & Building Materials

Ideal for tunnel and roller kilns. Controls temperature uniformity and minimizes heat loss, facilitating uniform sintering while extending kiln service life.

03 Glass Industry

Withstands temperatures above 1500℃ in melting furnaces. High chemical stability resists glass slag erosion and prevents contamination of glass liquid.

04 Petrochemical Industry

Applicable to gasifiers and reactors. Endures high pressures and corrosive gases, ensuring continuous, safe equipment operation.

Conclusion

Contact us now for a quote and experience the difference of working with the best in the business.

Frequently Asked Questions

What is the main advantage of Mullite Insulation Bricks?
The main advantages include outstanding thermal insulation with conductivity as low as 0.15 W/(m·k), high-temperature resistance up to 1450℃, and significant energy savings in industrial kilns.
What are the different grades available?
We offer JM23, JM26, and JM28 grades, which vary in their temperature resistance (from 1260℃ to 1450℃) and Al₂O₃ content to suit different industrial needs.
Are these bricks suitable for corrosive environments?
Yes, our mullite bricks are designed to withstand erosion from both acidic and alkaline media and maintain stable performance in reducing atmospheres.
Can these bricks reduce production costs?
Absolutely. By reducing heat loss and improving thermal efficiency by up to 8% in certain metallurgical processes, they significantly lower fuel consumption and operational costs.
In which industries are these bricks commonly used?
They are widely used in the Metallurgy, Ceramics, Glass, and Petrochemical industries for furnace linings, kilns, and high-temperature reactors.
Is the product environmentally friendly?
Yes, our bricks are produced from natural mineral raw materials, emit no harmful components, and comply with global environmental protection standards.