Castable Refractory for Blast Furnace Wind Pipe (HDG)
| Brand Index Item | HDG Type Castable Refractory | |||
| HDG-BPC1 | HDG-140 | HDG-NSBP | ||
| Bulk Density (g/cm3) | 110x24h≥ | 2.2 | 2.0 | |
| 1500x3h≥ | 2.7 | |||
| Compressive Strength (Mpa) | 110X24h≥ | 40 | 30 | 31 |
| 1300x3h≥ | 40 | 15 | ||
| 1500x3h≥ | 30 | |||
| Bending Strength (Mpa) | 110x24h≥ | 4.91 | ||
| 1400x3h≥ | 4.91 | |||
| Thermal Bending Strength (Mpa) | 1400x1h≥ | 2.94 | ||
| Linear Change Ratio After Firing (%) | 1300x3h | ±1.0 | ||
| 1400x3h | ±0.6 | |||
| 1500x3h | ±0.5 | |||
| Refractoriness (℃) ≥ | 1850 | 1630 | ||
| Chemical composition (%) | Al2O3≥ | 90 | 50 | 43 |
Ramming Refractory for Blast Furnace Iron Runner (HDD)
| Brand Index Item | HDD Type Ramming Refractory | |||
| HDD-1 | HDD-10 | HDD-60 | ||
| Bulk Density (g/cm3) | 110℃x24h≥ | 2.7 | 2.2 | 2.6 |
| 1450℃x2h ≥ | 2.65 | 2.2 | 2.55 | |
| Bending Strength (Mpa) | 1100℃x24h ≥ | 2.94 | 1.96 | 2.94 |
| 1450℃x3h ≥ | 2.45 | 2.94 | 2.45 | |
| Thermal Bending Strength (Mpa) | 1400℃x1h ≥ | 0.98 | 0.98 | |
| Linear Change Ratio After Firing (%) | 1400℃x2h | ±0.5 | ±0.5 | ±1.0 |
| Chemical composition (%) | Al2O3 ≥ | 75 | 58 | 60 |
| SiC ≥ | 3 | 12 | 3 | |
Castable Refractory for Blast Furnace Iron Runner (HDK)
| Brand Index Item | HDK Type Castable Refractory | |||
| HD-1K | HD-3K | HD-D1K | ||
| Bulk Density (g/cm3) | 110℃x24h≥ | 2.6 | 2.5 | 2.6 |
| 1450℃x2h ≥ | 2.5 | 2.5 | 2.5 | |
| Compressive Strength (Mpa) | 110℃x24h ≥ | 5.0 | 6.0 | 15 |
| 1450℃x3h ≥ | 15 | 10 | 30 | |
| Linear Change Ratio After Firing (%) | 1400℃x2h | ±1.0 | ±1.0 | ±1.0 |
| Chemical composition (%) | Al2O3 ≥ | 65 | 50 | 65 |
| SiC ≥ | 8 | 30 | 8 | |
Low Cement Castable Refractory (HD)
Usage：Low cement castable refractory with great properties of high temperature, erosion and thermal shock resistance can be used for ladle lining, continuous casting tundish permanent lining and thermal equipment.
Performance：The low cement castable refractory is newly developed by our company, which has the excellent characteristics of good plastic property, volume stability, high refractoriness, good slag resistant and good thermal shock resistant due to the adding of ultrafine powder, which takes effect on generating high strength ceramic bond improving structural strength of the castable after high temperature reaction, and the decrease amount of cement, which leads to the quantity reduce of low-melting phase in the matrix of the low cement castable.
Physical-chemical Index:
| Brand Index Item | HD-I High Alumina Castable | HD-II High Alumina Castable | HD-III Clay Bond Castable | |
| Bulk Density (g/cm3) | 110℃x24h | 2.75 | 2.6 | 2.4 |
| 1400℃x3h | 2.73 | 2.59 | ||
| Bending Strength (Mpa) | 110℃x24h ≥ | 8.5 | 7 | Refractoriness under load at 1500℃ Deformation 4% |
| 1500℃x3h ≥ | 15 | 12 | ||
| Compressive Strength (Mpa) | 110℃x24h ≥ | 80 | 70 | 6 |
| 1500℃x3h ≥ | 130 | 120 | 35 | |
| Linear Change Ratio After Firing (%) | 1400℃x3h | 0.1 | +0.3 | ±0.5 |
| Max Service Temperature (℃) | 1700 | 1500 | 1300 | |
| Chemical composition (%) | Al2O3 ≥ | 65 | 50 | 55-65 |
| SiO2 ≤ | 1.5 | 10 | ||
| Water Usage of Casting (%) | 7-8 | 6-7 | 7-8 | |
| Casting Parts | ladle lining, continuous casting tundish permanent lining, electric furnace electrode hole sealing ring | Ladle permanent lining, soaking pit furnace nozzle | Heating furnace, soaking pit furnace, heat treatment furnace and other industry furnace | |