Zhengzhou Zhengtong Abrasive Import&Export Co.,Ltd
| Payment Terms | L/C, T/T |
| Supply Ability | 2500 MTS per Month |
| Delivery Time | 7-14 days depending on the order quantity |
| Packaging Details | 25kg bag+Pallet,Ton Bag |
| Product Name | Black Aluminum Oxide |
| Commodity Name | Black Fused Alumina |
| Usage | Polishing Stainless Steel |
| Color | Black |
| True Specific Gravity | ≥3.5 g/cm3 |
| Buck Density | 1.68-1.22 g/cm3 |
| Brand Name | YEDA |
| Model Number | F12-F240 |
| Certification | ISO9001,ISO14001 |
| Place of Origin | Henan,China |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 2500 MTS per Month |
| Delivery Time | 7-14 days depending on the order quantity | Packaging Details | 25kg bag+Pallet,Ton Bag |
| Product Name | Black Aluminum Oxide | Commodity Name | Black Fused Alumina |
| Usage | Polishing Stainless Steel | Color | Black |
| True Specific Gravity | ≥3.5 g/cm3 | Buck Density | 1.68-1.22 g/cm3 |
| Brand Name | YEDA | Model Number | F12-F240 |
| Certification | ISO9001,ISO14001 | Place of Origin | Henan,China |
| High Light | solid aluminum oxide ，alumina grit blasting | ||
Medium Hardness Aluminum Oxide Black Fused Alumina F12-F240 for Polishing Stainless Steel
1. Product Description of Aluminum Oxide Black Fused Alumina
Black Aluminum Oxide also belongs to the group of electric corundum,it is made by high iron bauxite, high
alumina bauxite and iron oxide as main raw materials,then smelted in the electric arc furnace completely, then
made into different grit size after different processes of cooling,crushing ,screening etc.It has the characteristics
of moderate hardness,good self-sharpness,strong cutting force,not easy to burn the treatment and low cost.
2. Main Technical Index of Aluminum Oxide Black Fused Alumina
| Commodity | Quality Level | Main Chemical Index | |||
| Al2O3 | Fe2O3 | SiO2 | TiO2 | ||
| Black Aluminium Oxide | Ordinary Quality | ≥60 | 6-12% | ≤25% | 2-4% |
| Top Quality | ≥80 | 4-8% | ≤10% | 2-4% | |
| Main Physical Index | |
| Color | Black |
| Crystral Structure | Trigonal |
| Shape | Block,Sharp |
| Mohs Hardness | 8.0-9.0 |
| Vicker Hardness | 2000-2200kg/mm2 |
| Specific Gravity | ≥3.5g/cm3 |
| Bulk Density | 1.68-1.22 g/cm3 |
| Crushed Method | Barmac,Ball Mill |
| Product Standards | GB/T,FEPA etc. |
| Quality Level | Grit Size |
| Ordinary Quality | Gtit: F12-F240 |
| Section sand: 0-1mm,1-3mm,3-5mm,5-8mm | |
| Top Quality | Gtit:F46-F240 |
| Micropowder:F280-F1000 | |
| Remark:Special specifications can be customized, products can be produced according to GB/T standards,FEPA standards etc. | |
3. Why black aluminum oxide has the outstanding advantages in polishing stainless steel Tableware?
Seen from the micro-structure of aluminum oxide,the alumina particles has the main grinding and polishing
effect,it is dispersed in micro-crystalline state,surrounded by the silica particles(lower strength).
When alumina particles are passivated to a certain extent in the grinding process,it will be separated from the
silica particles and fall off,then appears a new cutting edge again,which is similar to the principe of SG abrasive.
Therefore black fused alumina has the good self-sharpness,not easy to burn the treatment surface.
Compared with other higher hardness abrasives such as brown fused alumina ,black fused alumina has the
outstanding advantage of polishing stainless steel tableware:
its moderate hardness and good self-sharpness will generate little heat in the treatment surface,then hardly to
burn the treatment,finally achieve uniform and bright color.
4. How to use black fused alumina to polish the stainless steel?
When polishing the stainless steel,the common polishing method is to put several cloth wheels on the rotating
shaft of polishing machine.
Adding the bone glue or resin bond to the outer circle of the cloth wheels,then roll the cloth wheels in the plate
fulfilled with black fused alumina,ensure the outer circle of cloth wheels is evenly glued with black fused alumina,
then dry the cloth wheels. Then load it onto the polishing machine, when polishing machine rotates,the polished
part will be contacted with the outer circle of cloth wheel under a suitable pressure to finish the polishing.
In addition,black fused alumina is also available to produce sandpaper,sandbelts or convert into flap wheels etc
to polish the stainless steel and other products.
5. Product Pakages of Black Aluminium Oxide
Ton Bag
25kg Bag+Pallets;
Special packages can be customized.
6. Why Choose us?
China Largest Black Aluminium Oxide Manufacturer,over 20 years production experience;
Occupies more than 60% Domestic Black Aluminium Oxide marketing;
The Stable Supplier of Saint-gobain Group and Forsoc Group etc.
7. Plant Picture
Company Details
Business Type:
Exporter,Seller
Year Established:
2017
Total Annual:
3000000-5000000
Employee Number:
100~120
Ecer Certification：
Verified Supplier
Zhengzhou Zhengtong Abrasive Import & Export Co., Ltd is specialized in providing ceramia beads blast -ing media, Zirconia beads grinding media and Aluminum Oxide abrasive using in grinding, polishing cutting, sandblasting and refractories. ... Zhengzhou Zhengtong Abrasive Import & Export Co., Ltd is specialized in providing ceramia beads blast -ing media, Zirconia beads grinding media and Aluminum Oxide abrasive using in grinding, polishing cutting, sandblasting and refractories. ...
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