Thermal insulating liner of furnace, such as heat preservation of heating furnace, annealing furnace and warm-air furnace, etc.;

Thermal insulating liner of chimney and pipes, such as heat preservation of warm-air pipe liner and flue liner, etc.;

Positions of smelter and the container equipment of fondant that do not contact fondant, such as the liner of furnace cover, furnace door, fire observation port of aluminum melting furnace, etc.;

Liner of various pipes of high furnace and warm-air furnace.

Model			LW-2.0	LW-1.8	LW-1.5	LW-1.3	LW-1.0
% Chemical composition	Al2O3		≥55	≥55	≥50	≥45	≥40
	SiO2		≤40	≤40	≤45	≤50	≤55
℃ Maximum service temperature			1450	1400	1350	1250	1200
g/cm3 Bulk density 110℃			2.0±0.1	1.8±0.1	1.5±0.1	1.3±0.1	1.0±0.1
℃ Refractoriness			1790	1790	1750	1700	1700
MPa Crushing strength		110℃×24h	≥15	≥12	≥12	≥10	≥10
		1000℃×3h	≥20	≥20	≥15	≥12	≥12
		MST℃×3h	≥25	≥25	≥20	≥17	≥15
% Linear change rate		1000℃×3h	- 0.2	- 0.2	- 0.2	- 0.2	- 0.2
		MST℃×3h	±0.5	±0.5	±0.5	±0.5	±0.5
W/(m·k) Heat conductivity at 500℃			0.50	0.45	0.40	0.35	0.30