White Fused Alumina has white color and a little higher hardness and toughness comparing with the brown one. The grinding tools made of this material are suitable for fine grinding of high carbon steel, high-speed steel and stainless steel, Abrasive powder of finer grit size, can also be used for precision casting and high-grade refractory.

Chemical Performance Index:

Purpose	specification		Chemical Composition(%)
			Al2O3	Na2O	SiO2	CaO
For Abrasives	F	12#—80#	≥99.0	≤0.5	—	≤0.4
		90#—150#	≥98.5	≤0.6
		180#—240#	≥98.2	≤0.7	—	≤0.4
	W	1#-63#	≥97.5	≤0.8	≤1.0	≤0.5
Refractory	Grain Size	5-8mm	≥99.0	≤0.5	—	≤0.4
		3-5mm
		1-3mm
		0-1mm
	Micro Powder	180#—0	≥98.5	—	≤0.3	≤0.5
		200#-0
		320#-0

Physical Performance Index:

Item			Index
Crystal shape			Trigonal
Hardness (Mohs)			≥9.0
Melting Point (℃)			2250
True Density (g/cm3)			≥3. 90
Linear Expansion Coefficient(0—1600℃)			7—9