Self-flow castables (SFC) is a innovative castable. It can be applied in all areas where applications require low cement, ultra-low cement and non-cement castables. Both mullite based Self-flow castables and alumina-based ones can be applied for the ladle and tundish safety linings.
The products show the features of good flow-ability,suitable setting time,labor-saving, high-strength,long service life, good insulation, high temperature resistance, superior resistant to thermal shock.
Corundum based SFC is suitable for the ladle bottom, around the seating block, gap fitting of EAF roof. Both mullite-based SFC and alumina-based ones can be applied for the permanent lining of ladle and tundish. SFC can also be installed by machine.
Typical product characteristics tables :
| Item | HSFSC -1 | HSFSC -1 | |
| Al2O3 + MgO % Min. | 90 | – | |
| Al2O3 + MgO + Cr2O3 % Min. | – | 90 | |
| Bulk Density g/cm3 Min. | 110℃x16h | 2.85 | 2.85 |
| 1500℃x3h | 2.85 | 2.85 | |
| Modulus of Rupture Mpa Min. | 110℃x16h | 30 | 20 |
| 1500℃x3h | 90 | 70 | |
| Cold crushing strength MPa Min. | 110℃x16h | 4 | 5 |
| 1500℃x3h | 12 | 12 | |
| Water addition % | 4.8±0.5 | 4.8±0.5 | |
| Applications | Ladle bottom, around seating block, gap filling | ||
| HSFSC – 3 | HSFSC -4 | ||
| Al2O3 % Min. | 50 | 60 | |
| Bulk Density g/cm3 Min. | 110℃x16h | 2.20 | 2.30 |
| 1350℃x3h | 2.15 | 2.25 | |
| Modulus of Rupture Mpa Min. | 110℃x16h | 5 | 6 |
| 1350℃x3h | 8 | 8 | |
| Cold crushing strength MPa Min. | 110℃x16h | 30 | 30 |
| 1350℃x3h | 50 | 60 | |
| Service temperature (℃) | 1600 | 1600 | |
| Water addition (%) | 7~9 | 7~9 | |
| Applications | Permanent lining of ladle and tundish | ||