JM-30 Mullite Insulation Brick is a high-performance, ultra-durable insulating refractory brick for demanding applications up to 1500°C. With high alumina content and excellent dimensional stability, it performs well in extreme conditions.
Technical Specifications
| Property | Value |
|---|---|
| Al₂O₃ (%) | ≥70 |
| Fe₂O₃ (%) | ≤1.0 |
| Bulk Density (g/cm³) | 0.6–1.2 |
| Cold Crushing Strength (MPa) | 1.0–3.5 |
| Reheat Linear Change (1500°C×12h) % | ≤0.2 |
| Thermal Conductivity (200–600°C) (W/m·K) | 0.18–0.56 |
Key Features
Exceptional high-temperature insulation
Long service life under thermal cycling
High-purity composition ensures clean furnace atmosphere
Suitable for aggressive heating zones
Typical Applications
Hot zones of industrial furnaces and reactors
High-performance insulation in aerospace and defense kilns
Power plants and gasifier linings
Production Details
Mullite insulation bricks are manufactured through high-temperature sintering and controlled firing processes. The bricks are shaped through extrusion or casting, followed by kiln firing to ensure optimal porosity, mechanical strength, and dimensional accuracy. Strict quality control is maintained throughout the production to ensure consistent performance.
Packing and Shipping Details
Packaging: Standard export carton or wooden pallet with shrink wrapping
Shipping: Global delivery via sea, air, or land transport
Customization: Available upon request for size, shape, and packaging options
Storage: Store in a dry environment away from moisture and direct exposure to chemicals
Frequently Asked Questions (FAQ)
Q1: What is the maximum operating temperature of Mullite Insulation Bricks?
Depending on the grade, Mullite Insulation Bricks can withstand continuous operating temperatures from 1200°C up to 1500°C.
Q2: What alumina content ranges do these bricks have?
The alumina (Al₂O₃) content ranges from 45% to 70%, increasing with the grade number (e.g., JM-23 has about 45%, JM-30 up to 70%).
Q3. Are Mullite Insulation Bricks suitable for direct flame exposure?
These bricks are mainly designed as insulating backup linings and are not recommended for direct flame contact. For hot-face applications, denser refractories are preferred.
Q4: Can the bricks be customized in size and shape?
Yes, Mullite Insulation Bricks can be manufactured in custom sizes and shapes according to specific project requirements.
Q5: How should Mullite Insulation Bricks be stored before installation?
Store the bricks in a dry, covered place to prevent moisture absorption, which can affect their insulation performance and durability.
