Castable is one of the most widely produced and used unshaped refractories, which is mainly used to build the overall structure of various heating furnace linings. Some high-quality varieties can also be used in smelting furnaces: cement bonded castable can be widely used in various heating furnaces and other slag free, acid and alkali free thermal equipment; In the parts with high working temperature eroded by molten iron, molten steel and slag, such as tapping trough, steel ladle, blast furnace stack, tapping trough, etc., pouring materials made of high-quality granular and powder materials with high alumina content and good sintering combined with low calcium and pure high alumina cement can be used; Phosphate bonded castable can be widely used in heating furnaces and homogeneous furnaces for heating metals, as well as in coke ovens and cement kilns where materials are in direct contact.
| PRODUCT /INDEX | Al2O3(%) ≥ | CaO(%) ≥ | Refractoriness（℃） | ≤1%CT℃×3hPLC ≤1% | After Drying (MPa) | ||
| CCS | MOR | ||||||
| ClayBonded | NL-45 | 45 | ― | 1700 | 1350 | 8 | 1 |
| NL-60 | 60 | ― | 1720 | 1400 | 9 | 1.5 | |
| NL-70 | 70 | ― | 1760 | 1450 | 10 | 2 | |
| CementBonded | 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 CementBonded | DL-60 | 60 | 2.5 | 1740 | 1500 | 30 | 5 |
| DL-80 | 80 | 2.5 | 1780 | 1500 | 40 | 6 | |
| PhosphateBonded | LL-45 | 45 | ― | 1700 | 1350 | 20 | 3.5 |
| LL-60 | 60 | ― | 1740 | 1450 | 25 | 4 | |
| LL-75 | 75 | ― | 1780 | 1500 | 30 | 5 | |
| Sodium SilicateBonded | BL-40 | 40 | ― | ― | 1000 | 20 | ― |