Our company is engaged in offering an extensive range of refractory castable, that are widely used in various industries such as steel, cement, petrochemical, non-ferrous and others. These find extensive usage in various applications including boiler work to general furnace and also in burner blocks. Designed as per international standards, our range can also be customized as per the specific requirements of our clients.
Refractory castable is mixed by corundum, high quality bauxite clinker,silicon carbide as aggregate,all kinds of powder,ultra-fine powder,micropowder,á-alumina powder and admixture with mixture rations according to differernt varieties.
Main characters of refractory castable are below:
1. High strengh in normal and medium temperature.
2. Good wear resistance and erosion resistance.
3. Good thermal shock stability.
Main physical and chemical characteristics of refractory castable:
| Items | Index | NO. | |||
| SHF-200 | HF-160 | HF-135 | HF-130 | ||
| Chemcial composition(%) | Al2O3 | ＞80 | ＞75 | ＞65 | ＞60 |
| SiO2 | ＜15 | ＜19 | ＜28 | ＜34 | |
| Bulk Density(g/cm3) | 110°C×24h | 3.0 | 2.8 | 2.5 | 2.4 |
| 1000°C×3h | 2.9 | 2.8 | 2.5 | 2.4 | |
| Modulus of Rupture(Mpa) | 110°C×24h | 12 | 10 | 8.5 | 7.0 |
| 1000°C×3h | 18 | 15 | 13 | 11 | |
| Cold Crushing Strength(Mpa) | 110°C×24h | 120 | 90 | 68 | 50 |
| 1000°C×3h | 180 | 120 | 95 | 80 | |
| Liner change after buring | 1000°C×3h | ±0.2 | ±0.2 | ±0.3 | ±0.3 |
| Wear resistance | 3.0 | 5.0 | 7.0 | 9.0 | |
| Heat Conductivity (W/m.k) | 1.6 | 1.5 | 1.5 | 1.5 | |
| Thermal shock resistance(times)(1000°C water cooling) | 35 | 30 | 25 | 20 | |
| Refractoriness °C | 1790 | 1790 | 1750 | 1730 | |
| Max Working Temperature | 1550 | 1500 | 1400 | 1350 | |
