High Alumina Runner Brick is the hollow fire brick connecting king brick and ingot mold in the groove of bottom plate for ingot casting.
In general, it is a kind of hollow fire clay brick of various sizes of rectangles. It is required to be smooth in inner hole, neat in appearance and tight in seam to reduce the resistance during the flow process of liquid steel and prevent from leaking.
Characters of Kerui High Alumina Runner Brick
- High refractoriness.
- Good crack resistance.
- Strong corrosion resistance.
Applications of Kerui High Alumina Runner Brick
It is widely used for slab casting of all kinds of steels (including stainless steel and chromium alloy steel).
Parameters of Kerui High Alumina Runner Brick
| Modle | FC-36 | FC-40 | HL-48 | HL-55 | HL-65 | HL-70 |
| Al2O3 % | >36 | >40 | >48 | >55 | >65 | >70 |
| Fe2O3 % | <2.0 | <1.8 | <2.0 | <2.0 | <2.0 | <1.5 |
| Alkalinity % | <1.8 | <1.8 | <1.8 | <1.8 | <1.8 | <1.8 |
| Apparent porosity % | 17-25 | <22 | <25 | <26 | <26 | <25 |
| Bulk Density g/cm3 | >2.1 | >2.18 | >2.2 | >2.25 | >2.3 | >2.35 |
| Refractoriness ℃ | >1700 | >1710 | >1750 | >1770 | >1790 | >1790 |
