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Brief introduction of high alumina runner brick
High alumina bricks are generally rectangular refractory clay bricks with different characteristics. To reduce the flow resistance of steel and prevent steel leakage, it is necessary that the flow brick has a smooth internal hole, smooth shape and tight joints.
Features of high alumina runner brick
High fire resistance
No deformation
Good chip resistance
Not flake and resists erosion
Applications of high alumina runner brick
High alumina runner brick is widely used in blast furnace, hot blast furnace, electric furnace, dome, coke oven, immersion well, heating furnace, off-road refining furnace, rotary furnace and various coatings of industrial furnaces, flue pipes, smoke chambers, etc.
Parameters of high alumina runner brick
| Modle/item | 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 |