high alumina insulating brick

1. Main Characters: High refractoriness, low density, high cold crushing strength and low thermal conductivity, make it save the industrial furnace’s energy very much.
 2. Applications:
High alumina insulation brick is widely used to build the thermal insulating layers of many kilns and
 the linings of industrial kilns, which working temperature is less than ***0℃.
 3. Physical and Chemical Index:

Item	Index
	LG*1.0	LG*0.9	LG*0.8	LG*0.7	LG*0.6	LG*0.5	LG*0.4
AL2O3，%				≥*8
Fe2O3 , %				≥2.0
Bulk Density, g/cm3	≤1.0	≤0.9	≤0.8	≤0.7	≤0.6	≤0.5	≤0.4
Cold Crushing Strength MPa Standard	≥3.9	≥3.4	≥2.9	≥2.5	≥2.0	≥1.5	≥0.8
Test temp linear change within 2％on reheating	***0	***0	***0	***0	***0	***0	***0
Thermal conductivity （**0±*5℃）W/m.k	0.*0	0.*5	0.*5	0.*5	0.*0	0.*5	0.*0

Explained: The operating temperature cannot surpass the test temperatur