Product Description of Magnesium Calcium Iron Dry Ramming Mass
Magnesium calcium iron dry ramming material is a dry material made of magnesium calcium iron sand and magnesia sand with reasonable grade, which is mainly used for building steel making and ferroalloy electric furnaces.
Product Specification of Magnesium Calcium Iron Dry Ramming Mass
| Item | Index | ||||
| MGT-1 | MGT-2 | MGT-3 | MGT-4 | ||
| MgO % | ≥78 | ≥81 | ≥82 | ≥85 | |
| CaO % | 12~15 | 6~9 | 8~11 | 6~8 | |
| Fe2O3 % | 4~5 | 5~9 | 3~5 | 4~5 | |
| SiO2 % | ≤1.3 | ≤1.5 | ≤1.1 | ≤1.3 | |
| Al2O3 % | ≤0.6 | ≤0.6 | ≤0.6 | ≤0.6 | |
| Grain size composition mm | 0~6 | 0~6 | 0~6 | 0~6 | |
| Bonding Method | Ceramic Bonded | Ceramic Bonded | Ceramic Bonded | Ceramic Bonded | |
| Fired Cold Crush Strength MPa | 1300℃×3h | ≥10 | ≥10 | ≥8 | ≥10 |
| 1600℃×3h | ≥30 | ≥30 | ≥30 | ≥30 | |
| Permanent Linear Change% | 1300℃×3h | -0.2~-0.5 | -0.2~-0.5 | -0.2~-0.5 | -0.2~-0.5 |
| 1600℃×3h | -1.5~-2.5 | -2.0~-3.0 | -0.1~-0.2 | -1.5~-2.5 | |
| Particle bulk density,g/cm3 | ≥3.25 | ≥3.25 | ≥3.25 | ≥3.25 | |
| Usage | Electric steelmaking furnace | Electric steelmaking furnace | Electric steelmaking furnace | Ferroalloy electric furnace | |