Black Corundum HS Code 2818109000, CAS No.1302-74-5, is made from high quality bauxite, iron oxide and micro-elements by melting in a tilting arc furnace. Black Corundum can be produced in a variety of sizes from grains to micro-powders. Black Corundum is also known as low aluminum corundum. Al2O3 content is 70% ~ 85%, It is also a new type product of polishing material and one of the most economical media available for a wide array of dry and wet processing applications.
We are professional black corundum manufacturer for customers in different industries and countries according to FEPA, JIS, GB, ISO, ANSI & P standard. 0-1mm, 1-3, 3-5mm etc. for refractoriness, FEPA F sizes for bonded abrasives aluminum oxide tools, FEPA P sizes for coated abrasives aluminum oxide products.
Black Corundum F80 Grit Basic Indicators:
| Molecular Formula | Al2O3 |
| Appearance | Black Powder |
| CAS No. | 1302-74-5 |
| HS Code | 28181090 |
Black Corundum F80 Grit Chemical Composition:
| Aluminum Oxide(Al2O3) | 77.0%min |
| Iron Oxide(Fe2O3) | 5.0%min |
| Titanium Oxide(TiO2) | 1.5-3.5% |
| Silicon Oxide(SiO2) | 11.0%min |
Black Corundum F80 Grit Physical Properties:
| Item | Indicators |
| Color | Black |
| Crystal | Trigonal system |
| Hardness (Mohs) | ≥ 9.0 |
| Melting point (°C) | 2050 |
| The maximum temperature (°C) | 1850 |
| True Density (g/cm3) | ≥ 3. 50 |
| Linear expansion coefficient (0-1600 °C) | 7-9 |
Black Corundum F80 Grit Particle Size Distribution(PSD)
| F080 | +300um | 0 | +212um | ≤25% | +180um | ≥40% | +180+150um | ≥65% | -125um | ≤3% |
All data based upon RunLong Enterprise’s standard test methods. We could supply grit size according to FEPA, JIS, ANSI, GB & P Standard.
Recommendations By Seller:
Application of sandblasting: stainless steel, iron workpiece, copper workpiece, glass product, plasthetics, aluminium extruded sections,
Copper section, jean and special plus materials, plush processing and effect of pattern.
Function: Remove surface stains, remove the welding slag and matt effect, remove oxide skin, surface strengthening, the role played by light.
Sandblasting size: 46, 60, 80mesh(Big size could recycle more times. Or according to the customer’s request.
Product Specification / Models
For Refractory
0-0.1mm 0-0.2mm 0-0.5mm 0-1mm 0.5-1mm 1-3mm 3-5mm 5-8mm 100mesh 200mesh 325mesh
Other specs are available upon request.
For Bonded & Coated Abrasives
Bonded abrasives: F24 F30 F36 F40 F46 F54 F60 F80 F100 F120 F150 F180 F220 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200
Coated abrasives: P24 P30 P36 P40 P50 P60 P80 P100 P120 P150 P180 P220 P240 P280 P320 P360 P400 P500 P600 P800 P1000 P1200 P1500 P2000 P2500 P3000
Other specs are available upon request.
For Sandblasting & Grinding
F24 F30 F36 F40 F46 F54 F60 F80 F100 F120 F150 F180 F220 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200
Other specs are available upon request.
For further technical data sheet, please do not hesitate to contact us.
Black Corundum Application:
1. Free grinding, such as floor polishing before electroplating metal parts and aluminium products.
2. Bicycle, motorcycle, sewing machine, clock parts.
3. Plastic and hardware tools, such as polishing, is also suitable for sandblasting (spray derusting, glass flower).
4. Processing and manufacturing resin cutting, angle grinding pills and coated abrasive, etc.
5. Black corundum sand and micro powder, especially suitable for the grinding and polishing of stainless steel workpieces and the manufacture of grindstone and abrasive paste.
Packing and storage
Packing: Double coated plastic woven / paper bag, net weight 25kg.
Big bag packing, net weight 1000kg / 1250kg per clients’ request.
Storage: Dry, ventilated, moisture proof.
Delivery
1. The sample will be send by International expresses FEDEX/DHL/UPS/TNT.
2. Full container Load(FCL): By vessel Or International Railway Transportation
3. Less Than Container Load(LCL): By vessel or By air
Payment
1. Payment: T/T, Western Union, LC, Paypal.
2. MOQ: Usually 1Tons
3. Quality Warranty: 1 years
After Sales Service:
1).We are very glad that customer give us some suggestion for price and products.
2).If any question, please let us know it by E-mail or Telephone at the first time. We can deal with them for you in time.
