Black aluminum oxide grits 12#,16#,24#,30#,36#,46#,54#,60# for abrasives
Black aluminum oxide, also known as Black fused alumina, low-aluminum corundum, Black emery, etc. is produced by melting high iron bauxite and high alumina bauxite in an electric arc furnace, characterizing by 62-65% low Al2O3 content. There is a certain amount of Fe2O3 (about 10%), so it has the characteristics of moderate hardness, high toughness, high temperature resistance and stable thermal performance.
The crude grits 12#, 14#, 16#, 20#, 24#, 30#,36#, 46#, 54#, 60# are mostly used for bonded abrasives, free grinding and sandblasting, etc.
Commodity: Black Fused Alumina
Production Type: Tilting Furnace, Rolling crushing or Barmac Crushing
| Al2O3 | SiO2 | Fe2O3 | TiO2 |
| 62%min. | 25% max. | 6-12% max. | 2.0%-4.0% |
| Color | Crystal Form | True Specific Gravity | Vickers Hardness |
| Black | Trigonal Crystal | 3.50g/cm3 | 2000kg /mm2 |
| Sizes-Grit | Sizes-Section sand | Micropowder |
| F12#--F280# | 0-1mm 1-3mm 3-5mm 5-8mm | F280#--F1000# |
| Grain Composition: GB, FEPA, or as per client's standard |
Package: 25kgs bag+ Ton bags or Pallets or as per customer's requests.
Delivery: 10-30 days on board according to quantity 25-200mt.
FOB Tianjin, China
The application of BA grit size: 12#, 14#, 16#, 20#, 24#, 30#,36#, 46#, 54#, 60#
Applicable to produce Resin-bonded cutting disc by mixing with BFA
Adding15%-30% black aluminum oxide grits with brown fused alumina to produce resin bonded cutting discs can improve the cuttings discs work life and the incision quality. Moreover, it can reduce the production cost obviously.
Applicable for sandblasting
Black Aluminum Oxide girts can be used as blasting media to sandblast for Stainless steel, metal products, optical glass, bamboo and wood products for impurity cleaning, vessel body de-rusting cleaning, de-burring, surface decontamination, matte treatment, pre-treatment before coating, pipeline cleaning, Jean cloth sandblasting, etching art, stress relief etc.
Why Choose us?
1) 20 years abrasive industry experiences
2) The biggest black fused alumina producer in China, one of Top 10 corundum manufacturers in China
3) Well-known brand in China Abrasive Industry
Caroline Cui
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Trigonalcrystalline Abrasive Black Alumina Blasting Media High Toughness Images
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