KSL-35 Clay Castable is a general-purpose refractory material designed for medium-temperature applications. With an Al₂O₃ content of ≥35% and a bulk density of 2.15 g/cm³, this castable offers a balanced combination of strength, thermal stability, and workability. It is widely used for furnace linings, boilers, and other thermal equipment requiring moderate resistance to heat and mechanical stress. Manufactured by Xintai, KSL-35 is a cost-effective solution for customers seeking consistent performance and reliable insulation.
Technical Specifications
| Property | Value |
|---|---|
| Al₂O₃ Content (%) ≥ | 35 |
| Bulk Density (g/cm³, 110℃×24h) ≥ | 2.15 |
| Cold Crushing Strength (MPa, 110℃×24h) | 25 |
| Flexural Strength (MPa) | |
| └─ 110℃×24h | 2.0 |
| └─ 1300℃×3h | 3.0 |
| Heating Permanent Line Change (%) | -1.5 ~ 0 (1300℃×3h) |
| Plasticity Index (%) | — |
| Moisture Content (%) ≤ | — |
Key Features
Economical refractory option with stable performance
Good cold crushing strength and moderate flexural strength
Excellent workability and easy installation
Thermal shock resistant for medium-heat environments
Suitable for general furnace and kiln linings
Typical Applications
Backup linings for industrial furnaces
Kilns and boilers in power plants
Non-ferrous metal and ceramic industry equipment
Chimneys, flues, and ducting exposed to thermal stress
Patch repair of worn refractory areas
Production Details
KSL-35 Clay Castable is manufactured by Xintai using selected fireclay aggregate and high-purity binders. Each batch undergoes strict quality control, including crushing strength testing and dimensional consistency checks. The material is supplied in dry mix form, ready for on-site water addition and casting.
Packing and Shipping Details
Packaging Type: 25kg or 50kg per moisture-resistant kraft bag
Palletized Load: Wrapped in PE film for moisture protection
Container Loading: Available in 20ft or 40ft containers
Delivery Time: 15–30 working days after order confirmation
Storage: Keep in a dry place; shelf life up to 6 months
Frequently Asked Questions (FAQ)
Q1: What is the recommended mixing ratio for installation?
Typically 8–10% water by weight is recommended for KSL-35, adjusted based on site conditions.
Q2: Can KSL-35 be used in direct flame contact areas?
It is suitable for medium-temperature zones. For flame-facing areas, higher alumina grades are recommended.
Q3. How should the material be stored before use?
Store in a dry, ventilated warehouse. Avoid moisture to maintain material activity.
Q4: Is this material suitable for casting or gunning?
KSL-35 is primarily designed for casting, but it can be modified for gunning applications upon request.
Q5: What curing process is required after casting?
Air cure for 24 hours at ambient temperature, followed by controlled heating to drive out moisture.
