Fused Mullite is produced by electric furnace fusion of high purity alumina and high purity silica.

Fused Mullite is a needle-like alumina-silica grain that has great features including:

Low conductivity

Excellent thermal shock resistance

Excellent resistance to deformation under load

Fused Mullite is used in applications such as refractories for glass and steel industries, kiln furniture, investment casting as shell building materials, spark plug bodies, and many other applications.

Contact KT Refractories for Fused Mullite, refractory mullites, or other refractory raw material because we save you time and money!

Call us at 1-877-365-2995 or email us at ConsumerService@KTRefractories.com for your refractory raw material, chemical additives or minerals need!

Fused Mullite Data Sheet:

Type Index		Guaranteed value	Typical value
Chemical Composition (%)	Al2O3	70-77	75.30
	SiO2	22-29	24.08
	Fe2O3	≤0.1	0.05
	R2O3	≤0.5	0.18
	RO	≤0.3	0.28
Mullite phase 3Al2O3 2SiO2 (%)		≥95
Glass phase (%)		≤5
Linear expansion coefficient (1/°C)		-6.0×10-6
Density of volume (g/cm3)		≥3.0
Refractoriness (°C)		≥1840
Grain size (mm)		5-3 3-1 1-0
Color		White or Grey
Test standard		KTB01006-2003
Packing		25 kg/plastic bag 1000 kg/plastic bag at buyer's option