High alumina brick is belong to silicon aluminate products with Al2O3 above 48%.it is widely used in metallugy industry, chemical plant such as cement kiln, hot blast stove, blast furnace, EAF etc
Specification of our ordinary high alumina brick as follows:
Item SK-36 SK-37 SK-38
Chemical component(%)
Al2O3 55 65 75
Fe2O3 2.0 2.0 2.0
refractoriness℃
1770 1790 1790
softening temp under.0.2Mpa load oC 1470 1500 1520
Bulk density(g/cm³)
2.3 2.5 2.62
Apparent porosity(%)AP 22 23 23
Cold crushing strength(Mpa) CCS 44 49 53
Linear Change(%)
1500 1500 1500
-0.4~+0.1 -0.4~+0.1 -0.4~+0.1