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Brown aluminum oxide TDS

BROWN ALUMINUM OXIDE （TECHNICAL DATA SHEET）

Brown Aluminum oxide is made from Calcined Bauxite. It is a hard and tough material, used in manufacturing of grinding wheels (both

vitrified and resin bonded) and coated products. These grains are also used for shot blasting and as polishing media. Refractory grade BFA is

used as a raw material in the manufacture of high alumina refractory..

PPHYSICAL PROPERTIES

Specific Weight	3.96 g/ cm³
Mohs Hardness	9.0
Crystal form	α-Al₂O₃
Melting Point	2250℃

TYPICAL CHEMICAL ANALISIS [%]

Size	Al₂O₃	Fe₂O₃	SiO₂	TiO₂	CaO	MgO
0-1mm 1-3mm 3-5mm 5-8mm	≥95.0	≤0.30	≤1.0	1.7-3.4	≤0.42	/
200F 325F	≥92.5	≤1.0	≤3.0	3.0-5.0	≤0.60	/

TTYPICAL CHEMICAL ANALISIS [%]

Al₂O₃	Fe₂O₃	SiO₂	MgO	CaO	TiO₂	Na₂O	K₂O	LOI
≥95.0	≤0.30	≤1.0	/	0.42	1.7-3.4	/	/	< 0.09

PARTICLE SIZE DISTRIBUTION

F8	+4000um	0	+2800um	≤20%	+2360um	≥45%	+2360+2000um	≥70%	-1700um	≤3%
F10	+3350um	0	+2360um	≤20%	+2000um	≥45%	+2000+1700um	≥70%	-1400um	≤3%
F12	+2800um	0	+2000um	≤20%	+1700um	≥45%	+1700+1400um	≥70%	-1180um	≤3%
F14	+2360um	0	+1700um	≤20%	+1400um	≥45%	+1400+1180um	≥70%	-1000um	≤3%
F16	+2000um	0	+1400um	≤20%	+1180um	≥45%	+1180+1000um	≥70%	-850um	≤3%
F20	+1700um	0	+1180um	≤20%	+1000um	≥45%	+1000+850um	≥70%	-710um	≤3%
F22	+1400um	0	+1000um	≤20%	+850um	≥45%	+850+710um	≥70%	-600um	≤3%
F24	+1180um	0	+850um	≤25%	+710um	≥45%	+710+600um	≥65%	-500um	≤3%
F30	+1000um	0	+710um	≤25%	+600um	≥45%	+600+500um	≥65%	-425um	≤3%
F36	+850um	0	+600um	≤25%	+500um	≥45%	+500+425um	≥65%	-355um	≤3%
F46	+600um	0	+425um	≤30%	+355um	≥40%	355+300um	≥65%	-250um	≤3%
F54	+500um	0	+355um	≤30%	+300um	≥40%	+300+250um	≥65%	-212um	≤3%
F60	+425um	0	+300um	≤30%	+250um	≥40%	250+212um	≥65%	-180um	≤3%
F70	+355um	0	+250um	≤25%	+212um	≥40%	+212+180um	≥65%	-150um	≤3%
F80	+300um	0	+212um	≤25%	+180um	≥40%	+180+150um	≥65%	-125um	≤3%
F90	+250um	0	+180um	≤20%	+150um	≥40%	+150+125um	≥65%	-106um	≤3%
F100	+212um	0	+150um	≤20%	+125um	≥40%	+125+106um	≥65%	-75um	≤3%
F120	+180um	0	+125um	≤20%	≥40%	≥40%	+106+90um	≥65%	-63um	≤3%
F150	+150um	0	+106um	≤15%	+75um	≥40%	+75+63um	≥65%	-45um	≤3%
F180	+125um	0	+90um	≤15%	+75um	*	+75+63um	≥40%	-53um	*
F220	+106um	0	+75um	≤15%	+63um	*	+63+53um	≥40%	-45um	*

TYPICAL CHEMICAL ANALISIS [%]

Al₂O₃	Fe₂O₃	SiO₂	FeO	MgO	CaO	TiO₂	Na₂O	K₂O	LOI
92.5-96.0	≤0.75	≤2.0	/	≤0.50	/	1.7-3.4	/	/	< 0.09

APARTICLE SIZE DISTRIBUTION

CHAPTER Ⅰ（JIS STANDARD）

Size	DO(um)	D3(um)	D50(um)	D94(um)
#240	≤127	≤103	57.0±3.0	≥40
#280	≤112	≤87	48.0±3.0	≥33
#320	≤98	≤74	40.0±2.5	≥27
#360	≤86	≤66	35.0±2.0	≥23
#400	≤75	≤58	30.0±2.0	≥20
#500	≤63	≤50	25.0±2.0	≥16
#600	≤53	≤41	20.0±1.5	≥13
#700	≤45	≤37	17.0±1.5	≥11
#800	≤38	≤31	14.0±1.0	≥9.0
#1000	≤32	≤27	11.5±1.0	≥7.0
#1200	≤27	≤23	9.5±0.8	≥5.5
#1500	≤23	≤20	8.0±0.6	≥4.5
#2000	≤19	≤17	6.7±0.6	≥4.0

CHAPTER Ⅱ（FEPA STANDARD）

Size	D3(um)	D50(um)	D94（um)
F230	＜82	53.0±3.0	>34
F240	＜70	44.5±2.0	>28
F280	＜59	36.5±1.5	>22
F320	＜49	29.2±1.5	>16.5
F360	＜40	22.8±1.5	>12
F400	＜32	17.3±1.0	>8
F500	＜25	12.8±1.0	>5
F600	＜19	9.3±1.0	>3
F800	＜14	6.5±1.0	>2

Mainly Applications

-Bonded Abrasives and Coated abrasives

-Refractory,casting,foundry,and painting etc

-Wet and dry blast media,grinding and polishing etc

-PCB plate(PCBA,FPC,LED) blasting

-Polishing wax,Grinding stones,polishing pads etc

-removal of scale, rust and old coatings

-ceramics shapes

-Grinding wheels,Cup wheels etc

-brake and friction linings

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