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White aluminum oxide(WA)
 
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.

Grain Types and Grades

Usage

For vitrified wheels

For organic wheels

For coated abrasives

Type & Grade

WA

WA-B

WA-P

Chemical Composition

GB/T 2479-1996

Na2O
typical
analysis

 

Type & Grade

Grit

Chemical composition
(%, by weight)

AL2O3

Na2O

WA

F12F80

98.50

0.50

0.32

 

F90F150

98.50

0.60

F180F220

98.20

0.70

W63W14

98.00

0.80

0.50

 

W10W5

97.50

0.90

WA-B

F12F80

98.50

0.60

0.55

F90F150

98.20

0.70

F180F220

98.00

0.80

WA-P

P12P80

98.50

0.60

0.60

 

P100P150

98.20

0.70

P180P800

98.00

0.80

P1000P1200

97.50

0.90

Note: Special requirement on chemical composition can be satisfied through discussion 

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