Mullite brick

Details

Mullite bricks are characterized by their high refractoriness, good thermal stability and resistance to corrosion and erosion of glass liquid and hence have the least contamination to glass liquid.So they are the most common refractoriness used for the feeder machine and tube drawing machine in domestic and foreign glass industries to promote productivity obviously.

Item/Modula	Sintered mullite bricks				Corundum mullite bricks
Item/Modula	MZ-60	MZ-65	MZ-70	MZ-75	GMS-80	GMS-85
Al2O3 %min	60	65	70	75	80	85
Fe2O3 %max	1.2	1.0	0.8	0.6	0.5	0.5
Refractoriness ℃ min	1790	1790	1790	1790	1790	1790
B.D. g/cm3 min	2.45	2.5	2.55	2.60	2.65	2.75
Apparent porosity % max	20	20	20	20	20	20
Compressive strength MPa min	50	50	55	60	60	60
Refractoriness under load T2 ℃ min	1600	1650	1700	1700	1700	1700
Linear change rate after reheating % 1500℃x3h	+/-0.1	+/-0.1	+/-0.1	+/-0.1	+/-0.2	+/-0.2
Application	Applied in various inner walls of high temperature kiln and heating equipment

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