High Alumina Refractory Bricks 1 With high refractoriness. 2 mechanical behavior Under high temperature. Specifications 

1. AL2O3:48%-85%. 2. High refractoriness. 3. Resistant acid-base erosive good.

High alumina brick, High alumina refractory brick,refractory high alumina brick

Features and advantages:

1. High refractoriness.

2. Good spalling resistance and wear resistance.

3. Good corrosion resistance.

4. Good thermal shock resistance.

5. High mechanical strength.

6. High-temperature creep rate is low.

Physical and chemical index:

Item		Index
		ZM-48	ZM-55	ZM-65	ZM-75	ZM-80	ZM-85
AL2O3  %  (≥)		48	55	65	75	80	85
Refractoriness °C (≥)		1750	1770	1790	1790	1820	1850
Refractoriness under load, 0.2MPa, °C  (≥)		1420	1450	1500	1520	1530	1550
Permanent linear Change  %	1500°C ,2h		0.1-0.4
	1450°C ,2h	0.1-0.4
Apparent porosity  % (≤)		22	22	23	23	22	23
Cold crushing strength  Mpa  (≥)		35	40	45	50	55	60

Application:

High alumina brick is mainly used for Widely used in blast furnaces, Hot Blast Stove,Steel ladle lining, Reheating furnace, Cement kiln, Tunnel kiln,boiler, coke oven, carbon furnace,glass kiln , Steel smelting furnace and various kiln lining and thermotechnical equipment, etc