Tapping Hole Brick for BOF
Tapping hole brick for BOF adopts high-quality fused magnesia and high-purity flake graphite as the main raw materials. and is pressed into shape by high-pressure molding or isostatic pressing.
It has the characteristics of low porosity, high strength at high temperature, strong anti-erosion and anti-scouring ability, good oxidation resistance, and long service life.
| Brand | ZTM-ZTH12 | ZTM-ZTH10 | ZTM-ZTH8 | ZTM-ZTH6 |
| MgO (%) | ≥78 | ≥80 | ≥82 | ≥84 |
| C (%) | 12 | 10 | 8 | 6 |
| AP (%) | ≤4.0 | ≤4.0 | ≤4.0 | ≤4.0 |
| BD (g ·cm³) | ≥2.0 | ≥2.92 | ≥2.94 | ≥2.96 |
| CCS (MPa) | ≥50.0 | ≥50.0 | ≥50.0 | ≥50.0 |
| HMOR (MPa) (1450℃, 30min) | ≥8.0 | ≥8.0 | ≥10.0 | ≥10.0 |
| Application | Used for the tapping hole. | |||
