High density calcium silicate board 1020 kg/m³ molten aluminum contact grade. Compressive strength ≥17 MPa, flexural strength ≥8.5 MPa, specifically engineered for direct contact with molten aluminum in smelting and casting operations. Exceptional dimensional stability with only 0.16% shrinkage at 850°C.
This is the molten aluminum contact grade high density calcium silicate board, specifically engineered for direct contact with molten aluminum in smelting, casting and transfer operations.
With a density of 1020 kg/m³, compressive strength of ≥17 MPa and flexural strength of ≥8.5 MPa, this product provides exceptional mechanical performance under the extreme conditions of aluminum processing.
The molten aluminum grade features superior resistance to aluminum penetration, minimal thermal shrinkage (≤0.16% at 850°C), and excellent long-term durability for trough linings, launder systems and holding furnace insulation.
Standard Size: 1230 × 1230 mm, thickness 6–160 mm; 1250 × 2500 mm, thickness 10–80 mm; 1200 × 600 mm, thickness 10–160 mm (custom sizes and shaped products available)
High density calcium silicate board 1020kg/m³ molten aluminum contact grade — manufactured by HR RHINO
High Density Calcium Silicate Board Molten Aluminum Contact Grade, density: 1020 kg/m³
| SiO₂ | % | 50 Min |
| CaO | % | 35 Min |
| Al₂O₃ | % | 1 Max |
| Fe₂O₃ | % | 0.5 Max |
| Loss on Ignition | % | 7 Max |
| Application Grade | Molten Aluminum Contact | |
| Bulk Density | kg/m³ | 1020 |
| Compressive Strength | MPa | ≥ 17 |
| Flexural Strength | MPa | ≥ 8.5 |
| Max Service Temperature | °C | 1000 |
| Thermal Conductivity (400°C) | W/m·K | ≤ 0.14 |
| Thermal Conductivity (800°C) | W/m·K | ≤ 0.23 |
| Linear Shrinkage (850°C, 3h) | % | ≤ 0.16 |
| Length mm (±2mm) | Width mm (±2mm) | Thickness mm (±2mm) |
| 1230 | 1230 | 6–160 |
| 1250 | 2500 | 10–80 |
| 1200 | 600 | 10–160 |
