POROSINT INSULATION BRICKS

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Product Description

Application:

Mullite insulating brick is widely used in different types of high temperature furnaces or kilns. For example, it is widely used for hot-blast furnace, regenerative chamber of glass melting furnace, ceramic kiln, blind angle furnace lining of petroleum cracking system, shuttle kiln, roller kiln and petrochemical burning pits and so on.

Item	JM23	JM26	JM28	JM30
AL2O3(%)	38-44	50-58	65-70	70-73
Fe2O3(%)	1	0.9	0.8	0.7
Classification Temperature (â„ƒ)	1350	1430	1540	1600
Bulk Density (g/cm3)	0.6-1	0.8-1	0.8-1	0.8-1
Reheating Linear Change (%) CT-30 â„ƒ*8h	1250â„ƒ -0.5	1400â„ƒ -0.5	1500â„ƒ -0.5	1550â„ƒ -0.5
Cold Crushing Strength (Mpa)	3.0-4.5	3.0-4.5	3.0-4.5	3.0-4.5
Modulus of Rupture (Mpa)	1.5	1.7	1.8	2
Thermal conductivity400â„ƒ(W/m.k)	0.25	0.27	0.32	0.41
Thermal Expansion1000â„ƒ(%)	0.5	0.7	0.8	0.9