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Product description of high alumina runner brick
Generally speaking, high alumina runner brick is a rectangular hollow refractory clay brick of different sizes. High alumina runner brick requires smooth inner holes, neat appearance and tight joints to reduce the resistance during the flow of molten steel and prevent water leakage.
Features of high alumina runner brick
High fire resistance.
Good crack resistance.
Strong corrosion resistance.
Applications of high alumina runner brick
It is widely used for slab casting of various steels, including stainless steel and chromium alloy steel.
Parameters of 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 |