Manufactured from pure quartz sand and industry alumina in supper-large electric arc furnace. Fused Mullite has a high content of mullite crystals which confer high melting point, excellent thermal stability, low reversible thermal expansion and resistance to thermal shock and chemical corrosion at high temperature. It is widely used as lining bricks in glass body kiln and large hot wind furnace in iron-making blast furnace, as well as in ceramic kiln and petro chemistry.

	Type	Guarantee value	Typical value

Chemical Composition (%)	Al2O3	70-77	75.3

	SiO2	22-29	24.08

	Fe2O3	≤0.1	0.05

	R2O3	≤0.5	0.18

	RO	≤0.3	0.28

Mullite phase 3Al203 2SiO2(%)	≥95

Glass phase (%)	≤5

Linear expansion coefficient (1/℃)	-6.0x10-6

Density of volume (g/cm3)	≥3

Refractoriness( °C )	≥1840

Grain size (mm)	5-3 3-1 1-0 100F 200F 325F or as the customer’s requirement

Color	White or Grey

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Fused Mullite