White aluminum oxide 280# 320# for grinding carbon plate of mobile phone

White fused alumina was made from the high quality alumina by melting above 2000 in the electric arc furnace and cooling. It is white with the main crystal phase alpha-Al2O3.

White aluminum oxide 280# 320# for grinding carbon plate of mobile phone -2-

White aluminum oxide 280# 320# for grinding carbon plate of mobile phone -3-

White fused alumina chemical composition
Al2O3	Fe2O3	Na2O	SiO2
99.2-99.7%	0.04-0.1%	0.24-0.35%%	≤0.1%
White fused alumina physical characteristics
1		color	white
2		Moh’s hardness	9
3		Bulk density	1.75-1.95g/cm3
4		proportion	3.95g/cm3
5		Melting point	2250℃
6		Maximum operating temperature	1900℃

PSD(Particle Size Distribution)

JIS standard micropowder particle size comparison table
Size	D0	D3	D50	D94
240#	≤127	≤103	57±3.0	≥40
280#	≤112	≤87	48±3.0	≥33
320#	≤98	≤74	40±2.5	≥27
360#	≤86	≤66	35±2.0	≥23
400#	≤75	≤58	30±2.0	≥20
500#	≤63	≤50	25±2.0	≥16
600#	≤53	≤41	20±1.5	≥13
700#	≤45	≤37	17±1.5	≥11
800#	≤38	≤31	14±1.0	≥9
1000#	≤32	≤27	11.5±1.0	≥7
1200#	≤27	≤23	9.5±0.8	≥5.5
1500#	≤23	≤20	8±0.6	≥4.5
2000#	≤19	≤17	6.7±0.6	≥4.0
2500#	≤16	≤14	5.5±0.5	≥3.0
3000#	≤13	≤11	4.0±0.5	≥2.0
4000#	≤11	≤8	3.0±0.4	≥1.8
6000#	≤8	≤5	2.0±0.4	≥0.8
8000#	≤6	≤3.5	1.2±0.3	≥0.6

Packing & Delivery

White fused alumina packaging

1. 1ton big bag
2. 25kgs pvc bag+1ton big bag
3.25kgs pvc bag+pallet
4.25kgs paper bag+pallet
Packaging can be customized according to customer requirement