Refractories for ladle
| Brand/Index | MgO(%) | Al2O3(%) | C(%) | Cr2O3(%) | Bulk density (g/cm³)110℃×24h | Compressive strength 110℃×24h(MPa) | Linear change rate 1400℃×3h(%) |
|---|---|---|---|---|---|---|---|
| Corundum artesian material | ≥4 | ≥90 | ≥3.0 | ≥40 | 0-1.5 | ||
| Aluminum-magnesium spinel castable | 5-10 | 60-70 | ≥2.55 | ≥2.50 | 0-0.6 | ||
| Spinel fire mud | ≥80 | 5-15 | ≥2.50 | ≥35 | -0.5-0.5 | ||
| Magnesia carbonaceous fire mud | ≥85 | 5-10 | ≥2.40 | ≥20 | 0-0.5 | ||
| Magnesium (carbon) caulk | 70-90 | 0-12 | ≥2.90 | 0-0.5 | |||
| Magnesium carbon hot repair material | ≥85 | ≥5 | ≥2.30 | ≥5 | |||
| Slag line spray feed | ≥84 | 0-5 | ≥2.30(1500℃x3h) | ≥15(1500℃x3h) | |||
| Corundum fire clay | 0-10 | 85-90 | 2-5 | ≥2.60 | ≥40 | 0-0.5 |
