Tapping Hole Brick
The tapping hole brick is a sort of combination refractory.It is main raw material includes high-pure electric-fused magnesia and pure graphite and it also contains some reagent add-ins.the tapping hole brick has characteristics of good resistance to corrosion.this product is mainly used for discharge port,tapping hole line and wrapping of convertor and electric arc.It can be supplied in single piece as well as by
a whole set after grouping.
Properties | ZGK-A | ZGK-B |
MgO % ≥ | 80 | ≥75 |
C % ≥ | 10 | ≥15 |
Cold crushing strength Mpa ≥ | 45 | ≥45 |
Modulus of rupture at elevated temperature (1400℃x30min)Mpa ≥ | 12 | ≥12 |
Bulk density g/cm3 ≥ | 2.98 | ≥2.95 |
Apparent porosity % ≤ | 3 | ≤3 |