Product detail
Steel Ladle Refractories
Main refractory materials of Steel Ladle
High alumina brick （48%）
1. Closing ring
2. Slag line
3. Walls
4. Bottom
5. Safety lining
6. Insulation
7. Lance
8. Well block
9. Filler sand
10. Ladle nozzle
11. Slide gate
12. Collector nozzle
Product Parameters
| Items项目 | Index指标 | |||||
| SN-40 | KN-40 | XN-40 | ZN-40 | |||
| Al2O3 （%） | ≥ | 40 | ||||
| Refractoriness 耐火度 °C |
≥ | 1710 | ||||
| （RUL）Refractoriness Under Load 0.2MPa荷重软化开始温度，℃ |
≥ | 1370 | ||||
| （PLC）Permanent linear change on reheating 重烧线变化 （%）1350°C,2h |
– | 0-0.3 | – | |||
| Apparent porosity 显气孔率 （%） |
≤ | 15-23 | 22 | 15-25 | 23 | |
| （C.C.S.）Cold Crushing Strength, MPa 常温耐压强度/MPa |
– | 19.6 | 19.6 | |||
| Thermal shock resistance (1100°C, water-cooling)/times 抗热震性/次 |
SN-40, XN-40 must perform this test, and the measured data should be indicated in the quality certificate （SN-40,XN-40必须进行此项检测，将实测数据在质量证明书中注明 ） | |||||
| Refractory Ramming Material （耐火捣打料） | ||||||
| Item 项目 | Semi-zircon | Zirconite | High aluminum | Aluminum texture | Paraffin | |
| Bulk density 体积密度 |
2.73 | 2.87 | 2.98 | 3.15 | 2.34 | |
| Apparent porosity, 显气孔率 （%） |
15.7 | 15.4 | 17.3 | 17 | ||
| Compressive strength MPa耐压强度/MPa |
8.9 | 9.6 | 32 | 35 | 11.3 | |
| （PLC）Permanent linear change on reheating 重烧线变化(1400°C)（%） |
3.01 | 0.31 | 2.56 | |||
| （RUL）Refractoriness Under Load 荷重软化温度(T2)/°C |
1490 | 1450 | ||||
| Refractoriness 耐火度°C |
>1630 | >1630 | >1825 | >1825 | >1610 | |
| Chemical composition 化学成分 | ||||||
| SiO2 | 68 | 54 | 19.3 | 10.8 | 90 | |
| Al2O3 | 7 | 12 | 63.3 | 37.3 | 8 | |
| Fe2O3 | 5.2 | 16.6 | ||||
| Cr2O3 | 6.9 | 24.1 | ||||
| ZrO2 | 23 | 30 | 2.9 | 10.4 | ||
| Application 应用 | Drum well | Slag line | ||||
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