Good Thermal Stability Lightweight Castable for Insulation Layer of Furnace

Lightweight castable is suitable for heat insulation layer of furnace wall, furnace top, flue and other parts. High strength lightweight castable can also be used as smoke exhaust system and hot air pipe lining. It combines the advantages of refractory and thermal insulation materials.

Lightweight Castable Characteristics:

1. Low volume density,
2. Low reburning line change rate,
3. Good thermal stability,
4. Low thermal conductivity
5. Constant combustibility

Lightweight Castable Application:

Lightweight castable is suitable for heat insulation layer of furnace wall, furnace top, flue and other parts. High strength lightweight castable can also be used as smoke exhaust system and hot air pipe lining.

Lightweight Castable Technical Data Sheet:

Items		NQ0.6	NQ0.8	NQ1.0	NQ1.2	NQ1.4	NQ1.6	NQ1.8
Al2O3 (%)		≥40	≥40	≥42	≥42	≥42	≥42	≥50
Bulk Density (g/m3)	110℃x24h	0.6	0.8	1.0	1.2	1.4	1.6	1.8
Compression Strength (MPa)	110℃x24h	≥1.0	≥3.0	≥3.5	≥12	≥14	≥18	≥25
	1000℃x3h	≥1.0	≥2.5	≥4.0	≥7	≥12	≥15	≥40
Permanent Linear Change (%)	1000℃x3h	±1.0	0-0.8	0-0.3	0-0.23	0-0.3	0-0.3	0-0.5
Thermal Conductivity (W/m.k)	400℃	-	<0.21	<0.31	<0.31	<0.47	<0.47	-
	600℃	<0.37	-	<0.45	<0.32	-	-	-
	800℃	<0.45	-	<0.50	<0.35	-	-	-
	1000℃	-	<0.28		<0.38	<0.61	<0.61	<0.8
Max. Service Temperature (℃)		1250	1250	1300	1300	1300	-	-