| Item | Steel Fiber Castable | |||||
| High Alumina Type | Corundum Type | |||||
| GF-15 | GF-16 | GF-17 | GF-18S | |||
| Al2O3(%) | 75 | 78 | 90 | 92 | ||
| SiO2(%) | 20 | 15 | 6 | 4 | ||
| Bulk Density(g/cm3) | 2.6 | 2.65 | 3.0 | 3.0 | ||
| P.L.C.(%) | 1100℃x3h | -0.1~+0.3 | -0.1~+0.3 | -0.1~+0.3 | -0.1~+0.3 | |
| 1500℃x3h | - | - | ±0.6 | ±0.6 | ||
| Cold Crushing Strength (MPa) | 110℃x24h | 80 | 100 | 100 | 100 | |
| 1100℃x3h | 80 | 100 | 100 | 100 | ||
| Water Addition(%) | 6~7 | 5.5~6.5 | 4.5~5.5 | 5~6 | ||
