KSL-40 Clay Castable is a high-performance, low cement refractory castable composed mainly of fire clay aggregates and fine powders. It features excellent workability, thermal shock resistance, and volume stability at elevated temperatures. Designed for general-purpose use in furnaces, kilns, and thermal equipment, this clay castable is widely used in both new linings and repair works due to its ease of installation and reliable service life.
Its chemical and physical properties make it ideal for medium-duty applications where thermal efficiency and mechanical durability are required without the need for high alumina content.
Technical Specifications
| Property | Value |
|---|---|
| Al₂O₃ Content (%) ≥ | 40 |
| Bulk Density (g/cm³, 110℃×24h) ≥ | 2.20 |
| Cold Crushing Strength (MPa, 110℃×24h) | 35 |
| Flexural Strength (MPa) | |
| └─ 110℃×24h | 2.5 |
| └─ 1300℃×3h | 3.5 |
| Heating Permanent Line Change (%) | -1.5 ~ 0 (1300℃×3h) |
| Plasticity Index (%) | — |
| Moisture Content (%) ≤ | — |
Key Features
Economical solution for general refractory lining
Good thermal shock resistance
Low shrinkage and excellent dimensional stability
Suitable for vibration casting and gunning
Good adhesion to old linings for patching and repairs
Ease of installation and low maintenance
Typical Applications
KSL-40 Clay Castable is ideal for areas exposed to medium thermal and mechanical stress. Typical applications include:
Boiler linings
Industrial furnaces
Incinerators
Kiln hoods and burner blocks
Firebox and combustion chambers
Secondary zones of cement and lime kilns
Production Details
KSL-40 is produced under strict quality control using premium-grade fire clay, fused alumina, and reactive binders to ensure consistent performance and durability. Every batch is tested to meet ISO standards for strength, thermal properties, and particle distribution. The product can be customized in terms of packaging and flowability upon request.
Packing and Shipping Details
Packaging: 25kg kraft paper bags or 1000kg jumbo bags
Storage: Store in dry conditions, preferably indoors. Use within 6 months.
Shipping: Available for palletized container loads or LCL shipping
MOQ: 1 metric ton
Frequently Asked Questions (FAQ)
Q1: What is the maximum service temperature of KSL-40 Clay Castable?
The product is designed for use at temperatures up to 1400°C.
Q2: Can this castable be used in direct flame contact areas?
It can be used in areas with moderate flame exposure, but for high-flame or slag environments, higher alumina castables are recommended.
Q3. What is the typical installation method?
Vibration casting is preferred for uniform density, though manual placement can be used for patching or small areas.
Q4: Is curing or dry-out required after installation?
Yes, standard curing (24h at ambient temperature) followed by controlled dry-out is necessary to avoid spalling.
Q5: Can it be used for repairing existing refractory linings?
Absolutely, it adheres well to pre-fired surfaces and is widely used for patching.
