Introduction
According to the operating conditions of different areas of the furnace lining, JHR designs series of MgO-C bricks for EAF. Using high purity and high density fused, large crystal fused magnesia and high purity graphite as starting materials, the bricks are produced by high pressure molding process.
MgO-C bricks with high strength, high refractoriness, strong resistance to erosion and thermal shock are mainly applied in EAF lining where directly contact with the molten steel and slag.
Specification
| Grade | JH-MT12B | JH-MT14A | JH-MT14B | JH-MT16A | JH-MT18A | |
| Chemical compositions (%), ≥ | MgO | 80 | 78 | 78 | 76 | 74 |
| C | 12 | 14 | 14 | 16 | 18 | |
| BD (g/cm³), ≥ | 2.97 | 2.95 | 2.94 | 2.93 | 2.90 | |
| AP (%), ≤ | 4.0 | 3.0 | 4.0 | 3.0 | 3.0 | |
| CCS (MPa), ≥ | 32 | 35 | 32 | 30 | 30 | |
| HMOR (1400℃×0.5h), (MPa), ≥ | 6 | 10 | 8 | 8 | 10 | |
