High alumina insulation brick

High alumina insulation brick, Small volume density, Low thermal conductivity, Excellent heat insulation....

Description

Item:	LG-1.2	LG-1.0	LG-0.9	LG-0.8	LG-0.7	LG-0.6	LG-0.5	LG-0.4
Al2O3 % ≥	48
Fe2O3 % ≤	2.0
Bulk density g/cm³≤	1.2	1.0	0.9	0.8	0.7	0.6	0.5	0.4
Cold crushing strength Mpa ≥	4.5	4.0	3.5	3.0	2.5	2.0	1.5	0.8
Permanent linear change temp ≥,less than 2%	1400	1400	1400	1400	1350	1350	1250	1250
Thermal conductivity W/m.k 350±25	≤0.55	≤0.50	≤0.45	≤0.35	≤0.35	≤0.30	≤0.25	≤0.20