Products Description
Our low density calcium silicate board is an asbestos-free, high-performance thermal insulation material engineered for extreme industrial environments. Manufactured from siliceous and calcareous materials reinforced with high-strength fibers, this board features a microporous structure that delivers exceptionally low thermal conductivity and lightweight handling. It is an ideal backing and hot-face insulation solution for furnaces, kilns, boilers, and petrochemical pipelines.
Key Features & Advantages
Ultra-Low Thermal Conductivity: Minimizes heat loss and significantly reduces energy consumption in continuous high-temperature operations.
Lightweight & High Strength: Combines low bulk density (220–280 kg/m³) with strong compressive and flexural strength, preventing sagging or deformation.
100% Asbestos-Free & Eco-Friendly: Safe for workers and compliant with international environmental standards; produces no toxic fumes when heated.
Easy to Cut & Install: Can be easily machined, sawn, or drilled using standard woodworking tools without crumbling or generating excessive dust.
Excellent Thermal Shock Resistance: Withstands rapid temperature fluctuations without cracking or spalling.
Technical Specifications
| Properties | Standard Grade (650°C) | High-Temp Grade (1000°C) |
|---|---|---|
| Max. Service Temperature | 650 °C (1202 °F) | 1000 °C (1832 °F) |
| Bulk Density | 220 – 250 kg/m³ | 240 – 280 kg/m³ |
| Thermal Conductivity (at 300°C) | ≤ 0.068 W/(m·K) | ≤ 0.075 W/(m·K) |
| Compressive Strength (10% def.) | ≥ 0.45 MPa | ≥ 0.60 MPa |
| Flexural Strength | ≥ 0.25 MPa | ≥ 0.35 MPa |
| Linear Shrinkage (24h) | ≤ 1.5% (at 650°C) | ≤ 2.0% (at 1000°C) |
| Standard Dimensions | 1000×500 mm / 1200×600 mm | 1000×500 mm / 1200×600 mm |
| Thickness Range | 25 mm – 100 mm | 25 mm – 100 mm |
(Note: Custom sizes, CNC-machined pipe shells, and OEM packaging are available upon request.)
Main Applications
Metallurgy & Steel: Backup lining for ladles, tundishes, reheating furnaces, and soaking pits.
Cement & Glass: Rotary kiln backup insulation, preheater towers, and glass melting tank bottoms.
Petrochemical & Power: High-temperature steam pipes, cracking furnaces, and boiler walls.
Passive Fire Protection: Fire-rated partitions, structural steel cladding, and marine bulkheads.
Packaging & Delivery
Packaging: Moisture-proof PE film wrapped, packed in heavy-duty export cartons or fumigation-free plywood pallets.
Lead Time: 7–15 working days after deposit confirmation.
Free Samples: Available for laboratory testing and quality verification.
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