Black aluminum oxide fine grits 70#-260# for stainless polishing
and sandblast
Black aluminum oxide is made of high alumina bauxite, high iron
bauxite or iron oxide scrap, melted and smelted at high temperature
in an electric arc furnace and then cooled and crushed by Barmac or
rolling mill. Its main chemical composition is aluminum oxide
(Al2O3), ferric oxide (Fe2O3), and some silicon dioxide (SiO2),
titanium dioxide (TiO2) and other components. The black aluminum
oxide production process determines that the power consumption is
lower than that of brown aluminum oxide, and the emissions are
less. It is an environmentally friendly and cost-effective abrasive
product.
The fine grits 70#-260# is suitable to polish stainless work pieces
like stainless tableware knife, form, spoon, bowl, etc.., and
suitable for sandblasting, to produce brake pads, 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 fine grits 70#-260# is suitable for:
- Polishing stainless steel work pieces, such as stainless steel
tableware.
Black aluminum oxide fine grits are traditionally used for surface
treatment of various work pieces such as sand blasting, grinding,
polishing, etc., especially for the polishing of stainless steel
work pieces.
Its alumina particles is dispersed in microcrystalline state and
surrounded by a slightly lower strength silica, similar to the
structure of the stacked abrasive. So the brown aluminum oxide has
advantages of moderate hardness, low grinding heat generated during
grinding and polishing, and is not easy to burn the surface of the
work piece. The surface of the stainless steel polishing by black
aluminum oxide is uniform in color, showing the essential luster of
stainless steel and no signs of burns.
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.
Black fused alumina fine powder can produce a variety of brake
pads,which has moderate hardness,and heat dissipation
characteristics.
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
4) Free samples to test
Caroline Cui
