Fireclay Insulation Brick

Light Weight Fire Clay Insulation brick is made of local top grade fireclay materials under the high temperature according to the lasted national standard, which possesses even bulk density, high strength, low thermal conductivity and low impurity. The temperature in the 1000-1250 ºC. Ingredients are mixed with water made of plastic material or mud, mud with extrusion or pouring shape, 1250-1350 ºC after dry burning oxidation atmosphere. The volume density of commonly used clay bricks is 0.5-1.2 g/cm3.

Characteristics:
1.Low thermal conductivity. 
2.Excellent insulating property. 
3.Steady quality. 
4.Low impurities.


Application:
Clay insulation bricks have a wide range of uses, mainly used in thermal boilers, glass furnaces, cement furnaces, fertilizer gas furnaces, blast furnaces, hot blast furnaces, coking furnaces, electric furnaces, etc.

Technical Data Sheet:

Item	Fireclay Insulation Brick
	NG-0.5	NG-0.6	NG-0.8	NG-1.0	NG-1.2
Al2O3(%)  ≥	35	40	42	42	42
Fe2O3(%)  ≤	2.5	2.5	2.0	2.0	2.0
Bulk Density (g/cm3) ≤	0.5	0.6	0.8	1.0	1.2
Cold Crushing Strength(MPa) ≥	1.0	1.5	2.0	2.5	3.0
Linear Change On Reheating 2% (℃*h)  ≤	1000℃*12h	1100℃*12h	1150℃*12h	1200℃*12h	1200℃*12h
Thermal Conductivity (w/m.k,{350±25℃})≤	0.18	0.25	0.35	0.50	0.52
Maximum Use Temperature (℃)  ≥	1000	1100	1150	1200	1200