Black Silicon carbide P800# micro powder
Introduction of Black Silicon carbide P800# micro powder
Black Silicon carbide P800 is an ultrafine SiC powder with High cleanliness, narrow particle size distribution, and high SiC purity. It is not only used for coated abrasive tools, but also suitable for precise grinding, and silicon carbide ceramics.
Properties of Black Silicon carbide P800# micro powder:
Very clean with few impurities such as free carbon, etc.
High hardness, retaining hardness, and high wear resistance.
Excellent thermal shock resistance with high thermal conductivity and low linear thermal expansion.
Good particle distribution with narrow particle range.
Good ability to withstand the strongest alkalis and acids.
Particle size distribution of Black Silicon carbide P800# micro powder:
| Size | Guarantee Value | Typical Value |
| D10(um) | ≥12 | 14.761 |
| D50(um) | 21-25 | 22.829 |
| D90(um) | ≤39 | 34.783 |
Chemical composition of Black Silicon carbide P800# micro powder:
| Chemical Item | Guarantee Value(%) | Typical Value(%) |
| SiC | ≥98.5 | 99.1 |
| Free C | ≤0.20 | 0.08 |
| Fe2O3 | ≤0.10 | 0.05 |
Typical physical properties of Black Silicon carbide P800# micro powder
| Hardness: | Mohs:9.2 |
| Melting Point: | dissociated at about 2300 °C |
| Maximum service temperature: | 1900℃ |
| Specific Gravity: | 3.2-3.45 g/cm3 |
| Bulk density(LPD): | 1.2-1.6 g/cm3(depends on the size) |
| Color: | Black |
| Particle shape: | Hexagonal |
| Modulus of Elasticity | 58-65×106 psi |
| Coefficient of Thermal Expansion | 3.9-4.5 x10-6/ ℃ |
| Thermal Conductivity | 71-130 W/MK |
Applications of Black Silicon carbide P800# micro powder:
- Grinding and polishing of stone, marble, ceramic products .
- Grinding of glass, jade, and gemstone products.
- Grinding and polishing of non-ferrous alloy materials .
- Raw materials for reaction sintered silicon carbide ceramics, high-temperature ceramics, metallurgical ceramics, and other products.
- Resin binders, ceramic binders, rubber binders, and other bonded abrasives.
- Coated abrasives such as sandpaper and nylon polishing wheels.
- Wear resistant and anti-corrosion fillers.
Available sizes of Black silicon carbide powder
| P-microgrits sizes coated | |
| Grit designation | Mean grain size ds50-value in um |
| P240 | 58.2±2 |
| P280 | 52.2±2 |
| P320 | 46.2±1.5 |
| P360 | 40.5±1.5 |
| P400 | 35.0±1.5 |
| P500 | 30.2±1 |
| P600 | 25.8±1 |
| P800 | 21.8±1 |
| P1000 | 18.3±1 |
| P1200 | 15.3±1 |
| P1500 | 12.6±1 |
| P2000 | 10.3±0.8 |
| P2500 | 8.4±0.5 |
| P3000 | 6.2±0.5 |
| P4000 | 5.3±0.3 |
| P5000 | 3.4±0.3 |
The production process of Black silicon carbide powder ：
Product Qualification of Black silicon carbide powder
ISO 9001:2015 Certificate
TUV certificate
Package of Black silicon carbide powder
- 25 kgs/PVC Bag with plastic inner bag.
- 1MT /Jumbo Bag
- 25 kgs/PVC Bag,40Bags/Jumbo Bag
- 1 Metric Ton/Jumbo Bag/Pallet
- 25 kgs/paper bag,1MT/Pallet
- Other customized package are available
FAQ：
Q: Are you a manufacturer?
A: We are manufacture. We began to produce silicon carbide material since 1999.
Q: Is the carborundum powder from you made by air flow or water flow process?
A: Our carborundum powder finer than F230 are made from water flow process after acid washing. The powder get narrow particle distribution range.
Q: What grade of silicon carbide do you have?
A: Expect metallurgical black silicon carbide, the silicon carbide from us are all of A grade quality.
Q: How will you check silicon carbide quality before delivery?
A: We will check the chemical content, cleanness of the SiC grain and powder. And inspect the gradation, bulk density of SiC grain and powder.
Q: Do you support third part quality test?
A: Yes, we are open to get third part quality test before delivery.
Q: Are the silicon carbide material from you is reclaimed material?
A: No. We only produce A grade silicon carbide produced from high quality melted SiC blocks.
Q: Is there any restriction to export silicon carbide from China?
A: Yes, it need to provide export license to Chinese customs. We could provide it and make custom clearance in China.
Q: Are free samples available?
A: Yes, we provide free samples within 1 kg. The customer only needs to bear the logistic cost.
Q: What is the lead time for each order?
A: It depends on the quantity required. Generally, 5-10 days for FCL(20-25MT).
Q: What is your annual capacity?
A: Our capacity is 1800-2000MT per month, annually appr. 22000 MT.
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