Type | Chemical composition% | Refractoriness°C | Critical Grain mm | Usage | |
MgO min | SiO2 min | ||||
GCT-1 | 40 | 30 | 1800 | 3 | Large.small Ladle EAF |
GCT-2 | 40 | 40 | 1700 | 3 | Middle-size Ladle |
GCT-3 | 30 | 50 | 1700 | 5 | Large-size Ladle |
Caustic Calcined Magnesite used for stuffing material for taphole