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High alumina bricks main raw material is high alumina,which is chosen,screened,removing iron and sintered.The acid-resistance,alkali-resistance are good.And the refractoriness is high.It can be used in blast furnace,hot-blast furnace,the roof of electric stove and ladle backing layer.
Main Properties
Index | Item | ||||||
LZ-75 | LZ-65 | LZ-55 | LZ-48 | ||||
Al2O3%≥ | 75 | 65 | 55 | 48 | |||
refractoriness,≥ | 1790 | 1770 | 1750 | ||||
refractoriness under load, ≥ | 1520 | 1500 | 1470 | 1420 | |||
,% | 1500,2h | 0. 1 - 0.4 | --- | ||||
1450,2h | --- | 0.1 -0.4 | |||||
App.Porosity,%≤ | 23 | 22 | |||||
C.C.S,MPa≥ | 53.9 | 49.0 | 44.1 | 39 | |||
main raw material is high alumina,which is chosen,screened,removing iron and sintered.The acid-resistance,alkali-resistance are good.And the refractoriness is high.It can be used in blast furnace,hot-blast furnace,the roof of electric stove and ladle backing layer.
Main Properties
Index | Item | ||||||
LZ-75 | LZ-65 | LZ-55 | LZ-48 | ||||
Al2O3%≥ | 75 | 65 | 55 | 48 | |||
refractoriness,≥ | 1790 | 1770 | 1750 | ||||
refractoriness under load, ≥ | 1520 | 1500 | 1470 | 1420 | |||
,% | 1500,2h | 0. 1 - 0.4 | --- | ||||
1450,2h | --- | 0.1 -0.4 | |||||
App.Porosity,%≤ | 23 | 22 | |||||
C.C.S,MPa≥ | 53.9 | 49.0 | 44.1 | 39 | |||
High alumina brick