Why Use 1020kg/m³ Calcium Silicate Board for Molten Aluminum Applications
Date Published
Introduction
In high-temperature industries such as aluminum processing, selecting the right insulation material is critical for safety, efficiency, and equipment lifespan.
High Density Calcium Silicate Board 1020kg/m³ is specifically engineered for applications involving molten aluminum, where conventional insulation materials often fail due to thermal shock and metal penetration.
Why Molten Aluminum Requires Special Insulation
Molten aluminum presents unique challenges:
Extreme temperatures up to 1000°C
Rapid heating and cooling cycles
Risk of metal penetration into insulation materials
High mechanical stress in furnace environments
Standard insulation boards may crack, deform, or degrade under these conditions. That’s why a specialized solution is required.
What Makes 1020kg/m³ Calcium Silicate Board Different
The 1020kg/m³ grade is designed with an ultra-dense xonotlite structure, offering:
Superior resistance to molten aluminum penetration
Excellent thermal shock resistance
High mechanical strength for structural stability
Very low shrinkage under high temperatures
These properties make it one of the most reliable materials for aluminum industry applications.
Typical Applications
This product is widely used in:
Aluminum melting furnaces
Holding furnaces
Aluminum launders
Casting systems
High-temperature contact zones
It ensures long-term performance even under harsh industrial conditions.
Technical Specifications
Max Service Temperature: 1000°C
Bulk Density: 1020 kg/m³
Flexural Strength: 8.5 MPa
Compressive Strength: 17 MPa
Thermal Conductivity @400°C: 0.14 W/m·K
Thermal Conductivity @800°C: 0.23 W/m·K
Linear Shrinkage @850°C × 3h: ≤ 0.16%
Application: Molten Aluminum Contact
Key Benefits
✔ Suitable for molten aluminum environments
✔ Excellent resistance to aluminum penetration
✔ Outstanding thermal shock performance
✔ Ultra-high density and strength
✔ Low shrinkage and long service life
✔ Non-asbestos and environmentally friendly
Conclusion
For industries dealing with molten aluminum, choosing the right insulation material directly impacts efficiency and equipment durability.
The 1020kg/m³ High Density Calcium Silicate Board provides a reliable, high-performance solution that meets the toughest industrial requirements.
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