Low Thermal Conductivity Insulation Diatomite Brick for Electric Arch Furnace

Fireclay insulation brick is made of local top grade fireclay materials with a content of 35%~42% Al2O3 according to the lasted national standard. The working temperature of them is from 1000-1200 ºC and bulk density is 0.5-1.0 g/cm3.

Fireclay Insulation Brick Characteristics:

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

Fireclay Insulation Brick 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.

Fireclay Insulation Brick Technical Data Sheet:
 

Item	Unit	Diatomite Brick
Brand		FGZT-0.7A	FGZT-0.7B	FGZT-0.6A	FGZT-0.5A	FGZT-0.5B
Bulk Density	g/cm3	0.7		0.6	0.5
Cold Crushing Strength	MPa	≥2.5	≥1.2	≥0.8		≥0.6
Permanent Linear Change (900℃x8h)	%	≤2%
Thermal Conductivity (300±10℃)	w/m.k	≤0.2	≤0.21	≤0.17	≤0.15	≤0.16