AL70% High Alumina Brick

1.High refractoriness 2.High cold crushing strength 3.Strong abrasion and corrosion resistance 4.Widely used for furnace

Item		Indexes
		LZ-75	LZ-65	LZ-55	LZ-48
Al2O3 %		≥75	≥65	≥55	≥48
Refractoriness(°C)		≥1790	≥1790	≥1770	≥1750
Refractoriness under Load		≥1520	≥1500	≥1470	≥1420
Permanent Linear Change	1500°C,2h	+0.1                           -0.4			-
	1450°C,2h	-			+0.1                             -0.4
Apparent Porosity %		≤22	≤23	≤22	≤22
Cold Crushing Strength		≥58	≥50	≥46	≥42

AL70% High Alumina Brick