Inka-refractory
Saray atagey a laryo ya alumina et mas atagey so inka-refractory da nen saray laryo ya fireclay odino semi-silica bricks, ya onabot ed 1750-1790℃; sikaray niklasipikan bilang atagey-grado iran materyales ya ag-onlelereg.
Say ag-inkayadyari ed silong na karga
Lapud atagey so Al₂O3 tan abeban impurity levels-ya manresulta ed daiset ya porma na abeban-melting glassy phases-say atagey-a produkto na alumina et mangipapatnag na mas atagey ya refractoriness ed silong na karga nen saray fireclay bricks. Balet, lapud saray mullite crystals et agmanporma na interlocking network structure, say refractoriness da ed silong na karga et mansiansian abeba nen say silica bricks.
Resisti ed slag
Lapud atagey so Al₂O₃ content da, saray atagey ya -alumina bricks et mipara ed neutral ya refractory ya materyales tan sarag dan labanan so erosion na acidic tan basic slags. Balet, lapud walay SiO2, say resistensya ra ed basic slag et medyo mas makapuy nen say resistensya ra ed acidic slag.