White Aluminum Oxide

It is used to grind hardened alloy steel, high-speed steel, high-carbon steel and stainless steel.Abrasive powders of finer grits are preferred for precision grinding.

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

Physical Chemical Performance
Grain type and Symbol
Chemical Properties
Grain Types and Grades

Symbol	Range of the grain	Chemical properties %		True density	Shape of grain
Symbol	Range of the grain	AL₂O₃	Na₂O	True density	Shape of grain
WA	F12-80	≥98.50	≤0.40	≥3.90	Equaled Volume
	F90-150	≥98.00	≤0.40
	F180-220	≥98.00	≤0.40
	F230-400	≥97.50	≤0.50
	F500-1200	≥97.00	≤0.60
WA-B	F12-80	≥99.00	≤0.40	≥3.90	Equaled Volume
	F90-150	≥98.50	≤0.40
	F230-600	≥98.00	≤0.40
	F16-80	≥97.50	≤0.50
WA-P1	F16-80	≥99.00	≤0.40	≥3.90	Equaled Volume needle form
	F100-150	≥98.50	≤0.40
	F180-400	≥98.00	≤0.50
	F500-1200	≥97.50	≤0.60

Usage	For Vitrified Wheels	For Resinoid bond	For Coated abrasives
Symbol	WA	WA-B	WA-P1

GB/T 2479-1996				Na₂O typical analysis
Type & Grade	Grit	Chemical composition (%, by weight)
		AL₂O₃	Na₂O
WA	F12～F80	≥98.50	≤0.50	0.32
	F90～F150	≥98.50	≤0.60
	F180～F220	≥98.20	≤0.70
	W63～W14	≥98.00	≤0.80	0.50
	W10～W5	≥97.50	≤0.90
WA-B	F12～F80	≥98.50	≤0.60	0.55
	F90～F150	≥98.20	≤0.70
	F180～F220	≥98.00	≤0.80
WA-P	P12～P80	≥98.50	≤0.60	0.60
	P100～P150	≥98.20	≤0.70
	P180～P800	≥98.00	≤0.80
	P1000～P1200	≥97.50	≤0.90

Usage	For vitrified wheels	For organic wheels	For coated abrasives
Type & Grade	WA	WA-B	WA-P

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