High-alumina Special-shaped Brick

High Temp Dry Pressed Bauxite High Alumina Refractory Bricks For Steel Furnace.

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High Temp Dry Pressed Bauxite High Alumina Refractory Bricks For Steel Furnace.

Specification

standard form, normal standard, shaped and special shaped bricks.Can be used in various kilns because of its cheapness and general tray package. Among all of the refractory materials, it is the mostly used in the key positions.Molding method: it has down draft kiln and tunnel kiln and the general sintering temperature is 1360-1480 degrees. It is a kind of aluminosilicate refractory product which aluminum oxide (Al2O3) content is higher than 48%.

Applications

1.Steel furnaces
2.Iron making furnaces
3.Glass kiln
4.Ceramic tunnel kiln
5.Cement kiln

Physical and chemical index

Item	Properties
	LZ-80	LZ-75	LZ-65	LZ-55	LZ-48
Al2O3 ,%	80	≥75	≥65	≥55	≥48
Refractoriness °C	≥1790	≥1790	≥1790	≥1770	≥1750
Bulk density,g/cm3	2.65	2.5	2.45	2.4	2.3
Softening temperature under load	1530	≥1520	≥1500	≥1470	≥1420
Permanent linear change,%	0.1	0.1	0.1	0.1