High alumina insulating bricks are ideal products for application of service temp. below 1400.

Featured with uniform structure, high crushing strength, low thermal conductivity, good high-temp. volume stability, high alumina insulating bricks are ideal products for application of service temp. below 1400°C, and widely used as inner lining or insulating layer in metallurgy, ceramic, petrochemical and machinery industries.

The following are technical specifications:  

Brand	PLG-1.3	PLG-1.0	PLG-0.9	PLG-0.8	PLG-0.7	PLG-0.6	PLG-0.5
Bulk density,(g/cm3)≤	1.3	1.0	0.9	0.8	0.7	0.6	0.5
Cold crushing strength,(MPa)≥	7.5	4.5	4.0	3.5	2.5	2.0	1.5
Linear change on heating, ≤2%(°C×h)	1400×12	1400×12	1400×12	1400×12	1350×12	1300×12	1250×12
Thermal conductivity,(W/m.k)≤  [350±25°C]	0.38	0.35	0.32	0.28	0.25	0.22	0.19
Al2O3(%)≥	48.0
Fe 2O3(%)≤	1.5

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