白剛玉用原料為高純度的氧化鋁經電熔加熱，熔化並冷卻後加工而成，為了和普通純度的電熔氧化鋁區分開，所以又稱高純度的電熔氧化鋁，呈白色，氧化鋁的純度可達99.9%及以上，莫氏硬度為9.0,耐高溫度可達2300攝氏度，耐酸堿腐蝕性強，廣泛應用於醫藥，化工，電子等諸多行業。
因為它的耐高溫性能，耐腐蝕性能，高強度特點，被廣泛用於磨料磨具砂輪，砂布，砂紙，噴砂，拋光，及耐火材料。
由於硬度大，適用於加工鋼材，不銹鋼，高速鋼，碳鋼等。
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 | |||
White fused alumina, white corundum with purity 99.5%min.
White fused aluminium oxide powder and grit FEPA, JIS, China 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
For order packing:
25kg bags on pallet
25kg bags in ton bag
1000kg bag
