
Corundum Based Castable
Other name: High strength corundum castable, Corundum refractory castable
Model Number: HCR-17,HCR-17K,HCR-18s
Certification: ISO 9001-14001
Minimum Order Quantity: 5 MT
Corundum castable
Introduction:
Corundum castables are made of refractory raw materials with Al2O3 content greater than 90% and corundum as the main crystalline phase and formulated with appropriate amount of dispersant, accelerator, stainless steel fiber and according to strict formula.
Advantages:
High temperature strength, wear resistance, erosion resistance, high thermal conductivity, thermal shock resistance, corrosion resistance, good sealing and quick condensation.
Application:
By adding a certain proportion of steel fiber and admixture to the castable, it can produce steel fiber castable with good thermal stability and strong wear resistance, which is used for heating furnace hearth, tapping tank and cement rotary kiln inlet zone and outlet zone.
Corundum castables phycial and chemical
| Item | HCR-18s | HCR-17 | HCR-17K | |
| Al2O3 min% | 90 | 88 | 88 | |
| Bending Strength Mpa > | 12 | 11 | 10 | |
| Cold Crushing Strength Mpa ≥ | 110℃ ×3h | 105 | 100 | 95 |
| 1100℃ ×3h | 110 | 110 | 110 | |
| 1450℃ ×3h | 120 | 110 | 105 | |
| Linear Expansion Coefficient % | +0.2 | +0.2 | +0.2 | |
| Operate Temperture (℃) | 1600 | 1600 | 1550 | |