White Aluminum Oxide(WA)
Available Mainly grit of micro powder: FEPA grade F240-F1200, JIS grade #240-#8000, China GB grade W63-w0.5.
Available quantity for each grit: 10MT to 120MT per month.
Mainly using purpose: grinding, ceramic making, refractory media, abrasive, other additive media.
It has white color, high hardness (Mohs hardness: 9.0), high melting point(2300 degree centigrade), high purity (AL2O3:99.5%Min), high temperature resistance characteristic, very stable chemical characteristic.
The powder and grit are widely used for abrasive media, sandblasting, polishing and grinding on metals surface treatment, such as steel, stainless steel, high carbon steel, high speed steel. It is also used for refractory materials, abrasion resistance additive, hardware decoration. And it is commonly used for making ceramics at industrial grade, food grade, for electronics. For beauty additive, it is also commonly in recent years.
The abrasive tools made of it 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, for sandblasting, and abrasive etc.
Symbol | Range of the grain | Chemical composition (%) | True density | Shape of grain |
Al2O3 | Na2O |
WA | F12-80 | ≥99.70 | ≦0.2 | ≥3.90 | Equaled Volume |
F90-150 | ≥99.70 | ≦0.2 |
F180-220 | ≥99.50 | ≦0.2 |
F230-400 | ≥99.50 | ≦0.25 |
F500-1200 | ≥99.0 | ≦0.25 |
China GB | JIS R6001-1998 | ANSI B74.12-1992 | FEPA 42GB-1984 DIN 69101-1985 |
GB/T2481.2-1998 | GB/T9258.1-2000 | Grit | d50(µ m) | Grit | d50(µ m) | Grit | d50(µ m) |
Grit | d50 (µ m) | Grit | d50 (µ m) | Sedimentation tube menthod | Electric resisance method | Sedimentation tube menthod | Standard Werte der Mlkro-Frelhe | Sedigraph 5000D |
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| P240 | 58.5±2.0 | 240 | 60.0±4.0 | 57.0±3.0 |
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| P280 | 52.2±2.0 | 280 | 52.0±3.0 | 48.0±3.0 |
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F230 | 53.0±3.0 | P320 | 46.2±1.5 | 320 | 46.0±2.5 | 40.0±2.5 | 240 | 53.5-50 | F230 | 53.0±3.0 | 50.0±3.0 |
F240 | 44.5±2.0 | P360 | 40.5±1.5 | 360 | 40.0±2.0 | 35.0±2.0 |
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| F240 | 44.5±2.0 | 42.0±2.0 |
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| P400 | 35.0±1.5 | 400 | 34.0±2.0 | 30.0±2.0 | 280 | 44-40.5 |
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F280 | 36.5±1.5 | P500 | 30.2±1.5 | 500 | 28.0±2.0 | 25.0±2.0 | 320 | 36-32.5 | F280 | 36.5±1.5 | 34.5±1.5 |
F320 | 29.2±1.5 | P600 | 25.8±1.0 | 600 | 24.0±1.5 | 20.0±1.5 | 360 | 28.8-25.8 | F320 | 29.2±1.5 | 27.7±1.5 |
F360 | 22.8±1.5 | P800 | 21.8±1.0 | 700 | 21.0±1.3 | 17.0±1.3 | 400 | 23.6-20.6 | F360 | 22.8±1.5 | 21.6±1.5 |
F400 | 17.3±1.0 | P1000 | 18.3±1.0 | 800 | 18.0±1.0 | 14.0±1.0 | 500 | 19.7-16.7 | F400 | 17.3±1.0 | 16.5±1.0 |
F500 | 12.8±1.0 | P1200 | 15.3±1.0 | 1000 | 15.5±1.0 | 11.5±1.0 | 600 | 16-13 | F500 | 12.8±1.0 | 12.3±1.0 |
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| P1500 | 12.6±1.0 | 1200 | 13.0±1.0 | 9.5±0.8 |
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F600 | 9.3±1.0 | P2000 | 10.3±0.8 | 1500 | 10.5±1.0 | 8.0±0.6 | 800 | 12.3-9.8 | F600 | 9.3±1.0 | 9.0±1.0 |
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| P2500 | 8.4±0.5 | 2000 | 8.5±0.7 | 6.7±0.6 | 1000 | 9.3-6.8 |
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F800 | 6.5±1.0 |
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| 2500 | 7.0±0.7 | 5.5±0.5 |
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| F800 | 6.5±1.0 | 6.3±1.0 |
F1000 | 4.5±0.8 |
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| 3000 | 5.7±0.5 | 4.0±0.5 | 1200 | 6.5-4.5 | F1000 | 4.5±0.8 | 4.5±0.8 |
F1200 | 3.0±0.5 |
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| 4000 |
| 3.0±0.4 |
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| F1200 | 3.0±0.5 | 3.1±0.5 |
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| 6000 |
| 2.0±0.4 |
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| 8000 | 1.2±0.3 |
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White fused alumina, WFA corundum with 99.5% purity.
White fused aluminium oxide powder and grit FEPA, JIS, GB standard.
Powder, micro powder, grains, for sand blasting, grinding, polishing, abrasive making, refractory.
FEPA Standard
F4,F5,F6,F7,F8,F10,F12,F14,F16,F20,F22,F24,F30,F36,F40,F46,F54,F60,F70,F80,F100,F120,F150,F180,F220
F240,F280,F320,F360,F400,F500,F600,F800,F1000,F1200
P grade
JIS standard
#4,#5,#6,#7,#8,#10,#12,#14,#16,#20,#22,#24,#30,#36,#40,#46,#54,#60,#70,#80,#100,#120,#150,#180,#220
#240,#280,#320,#360,#400,#500,#600,#800,#1000,#2000,#3000,#4000,#6000,#8000
