Clay and high alumina castables are two types of refractory materials used in high-temperature applications. Clay castables are made of clay as a binding material, while high alumina castables are made of high-alumina raw materials. Both are installed as a monolithic mass, providing a seamless lining for applications such as furnace linings and kiln linings.
| Application | Cement kiln, Other Kiln, Steel Kiln |
|---|---|
| Refractoriness (℃) | 1640, 1660, 1700, 1720, 1740, 1780 |
| Raw Material | Al₂O₃, Cr₂O₃ |
| Package | Bag |
Clay and high alumina castables are two types of refractory castables that are widely used in high-temperature applications. Clay castables are composed of clay as a binding material, while high alumina castables are made from high-alumina raw materials and have a higher alumina content. Both types of castables are designed to be mixed with water and installed as a monolithic mass, providing a seamless lining that can withstand high temperatures and harsh environments. They are commonly used in industries such as steel, cement, petrochemical, and power generation for applications such as furnace linings, kiln linings, and incinerator linings.
| Item | Al2O3 （%）≥ | CaO （%）≥ | Refractoriness （℃） | CT℃×3h PLC ≤1% | 110℃ After Drying (MPa) | ||
| CCS | MOR | ||||||
| Clay Bonded | NL-45 | 45 | ― | 1700 | 1350 | 8 | 1 |
| NL-60 | 60 | ― | 1720 | 1400 | 9 | 1.5 | |
| NL-70 | 70 | ― | 1760 | 1450 | 10 | 2 | |
| Cement Bonded | GL-42 | 42 | ― | 1640 | 1350 | 25 | 3.5 |
| GL-50 | 50 | ― | 1660 | 1400 | 30 | 4 | |
| GL-60 | 60 | ― | 1700 | 1400 | 30 | 4 | |
| GL-70 | 70 | ― | 1720 | 1450 | 35 | 5 | |
| GL-85 | 85 | ― | 1780 | 1500 | 35 | 5 | |
| Low Cement Bonded | DL-60 | 60 | 2.5 | 1740 | 1500 | 30 | 5 |
| DL-80 | 80 | 2.5 | 1780 | 1500 | 40 | 6 | |
| Phosphate Bonded | LL-45 | 45 | ― | 1700 | 1350 | 20 | 3.5 |
| LL-60 | 60 | ― | 1740 | 1450 | 25 | 4 | |
| LL-75 | 75 | ― | 1780 | 1500 | 30 | 5 | |
| Sodium Silicate Bonded | BL-40 | 40 | ― | ― | 1000 | 20 | ― |
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