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Black Silicon Carbide
Black Silicon Carbide (Black SiC) is a high-performance synthetic abrasive known for its exceptional hardness, sharp cutting ability, and excellent wear resistance. Manufactured from high-purity silica sand and petroleum coke in an electric resistance furnace, it is widely used for grinding, blasting, polishing, lapping, and refractory applications. With its fast material removal rate and consistent particle distribution, Black Silicon Carbide is an ideal choice for processing stone, glass, ceramics, cast iron, and non-ferrous metals while delivering reliable performance and cost-effective results.
Description
Sharp, Durable, and Efficient Abrasive for Grinding, Blasting & Surface Preparation
Black Silicon Carbide (Black SiC) is a synthetic abrasive produced by smelting high-purity silica sand and petroleum coke in an electric resistance furnace at high temperatures. Known for its exceptional hardness, sharp cutting edges, and excellent thermal conductivity, Black Silicon Carbide is widely used in grinding wheels, coated abrasives, refractory materials, lapping compounds, sandblasting media, and precision surface finishing applications.
Compared with conventional abrasives, Black Silicon Carbide offers faster cutting performance, reduced grinding heat, and superior wear resistance, making it an ideal choice for processing hard and brittle materials as well as non-ferrous metals.
Key Features & Advantages
Black silicon carbide is widely used due to its outstanding characteristics and advantages.
High Hardness and Sharp Cutting Ability
Black Silicon Carbide is one of the hardest synthetic abrasives available, allowing rapid material removal and efficient grinding performance.
Excellent Wear
Resistance
The strong crystal structure helps maintain sharp cutting edges throughout the grinding process, extending abrasive life and improving productivity.
High Thermal
Conductivity
Efficient heat dissipation reduces thermal damage to workpieces and helps maintain grinding accuracy.
Consistent Particle Distribution
Uniform grit sizing ensures stable cutting performance and predictable surface finishes.
Chemical Stability
Black Silicon Carbide exhibits excellent resistance to chemical reactions and oxidation, making it suitable for demanding industrial environments.
Cost-Effective Abrasive Solution
Combining high cutting efficiency with long service life helps reduce overall processing costs.
product Specifications
| Particle Size | Chemical Composition % (by weight) | ||
| SIC | F.C | Fe2O3 | |
| 12#-90# | ≥98.50 | ≤0.20 | ≤0.20 |
| 100#-240# | ≥98.50 | ≤0.25 |
≤0.25 |
| 280#-600# | ≥98.00 | ≤0.30 | ≤0.30 |
| 800#-1000# | ≥97.50 | ≤0.30 | ≤0.30 |
| 1200#-1500# | ≥97.50 | ≤0.35 | ≤0.35 |
| Standard | FEAP- F (Vitrified and Resinoid abrasives), FEPA- P (Coated abrasives), JIS standard | ||
| Grit |
F12 – F220(Macro), F240-F2000 (Micropowder), P12-220, P240-P2500 JIS12--8000 |
||
| For Refractory | 0-1mm, 1-3mm, 3-5mm, 0-10mm, 16-35mesh, -70F, -100F, -325mesh, Dust | ||
Product Applications
Grinding Wheels Manufacturing
Used as a primary abrasive material in vitrified, resin-bonded, and rubber-bonded grinding wheels for high-performance grinding applications.
Coated Abrasives
Suitable for abrasive belts, sanding discs, sanding rolls, and abrasive sheets used in metalworking and woodworking industries.
Sandblasting and Surface Preparation
Provides efficient cleaning, rust removal, paint stripping, and surface texturing before coating or painting.
Stone and Glass Processing
Ideal for cutting, grinding, polishing, and finishing stone, ceramic, glass, and other brittle materials.
Refractory Materials
Used in high-temperature refractory products due to its excellent thermal stability and wear resistance.
Precision Lapping and Polishing
Suitable for producing smooth and uniform finishes on precision components and engineering materials.
Black Silicon Carbide vs Green Silicon Carbide
Many buyers are unsure whether to choose Black Silicon Carbide or Green Silicon Carbide. While both belong to the silicon carbide family, they are designed for different applications.
| Property |
Black Silicon Carbide
|
Green Silicon Carbide
|
| products |
 |
 |
| Purity | Lower | Higher |
| Color | Black | Green |
| Hardness | Very High | Slightly Higher |
| Toughness | Better | Lower |
| Cost | More Economical | Higher Cost |
| Cutting Speed | Fast | Extremely Fast |
| Service Life | Longer in General Grinding | Best for Precision Grinding |
| Typical Applications | Metal, Stone, Glass, Sandblasting | Carbide Tools, Ceramics, Optical Glass |
When to Choose Black Silicon Carbide
Black Silicon Carbide is the preferred option when:
Cost efficiency is important
General grinding applications are required
Sandblasting operations are performed
Stone, glass, and metal processing are involved
Higher toughness is preferred
When to Choose Green Silicon Carbide
Green Silicon Carbide is recommended
when:
Processing cemented carbide tools
Grinding ultra-hard materials
Precision polishing is required
Optical glass finishing applications are involved
Materials Suitable for Processing
One of the biggest advantages of Black Silicon Carbide is its versatility. Thanks to its high hardness and sharp cutting characteristics, it can effectively process a wide range of hard, brittle, and non-ferrous materials.
Glass & Optical
Materials
Flat glass
Optical glass
Glass tubes
Decorative glass products
Architectural glass components
Its sharp cutting action helps achieve smooth surfaces while minimizing edge chipping.
Stone & Ceramic Materials
Granite
Marble
Quartz stone
Ceramic tiles
Technical ceramics
The abrasive's durability and cutting efficiency make it ideal for both rough grinding and finishing operations.
Metals &
Alloys
Cast iron
Brass
Copper
Aluminum
Titanium alloys
Black Silicon Carbide performs particularly well on non-ferrous metals where fast cutting and reduced loading are required.
Advanced Engineering Materials
Composite materials
Carbon fiber components
Fiberglass products
Refractory materials
Hard coatings
Its high wear resistance ensures consistent performance even in demanding applications.
How to Select the Right Black Silicon Carbide Grit
Select the required grit size based on the application.
Heavy stock removal
Surface cleaning
Sandblasting
Stone cutting
General grinding
Surface preparation
Deburring
Intermediate finishing
Fine grinding
Precision finishing
Surface smoothing
Coated abrasive production
Lapping
Polishing
Precision ceramics
Optical glass processing
Frequently Asked Questions
If you have any further questions, please contact customer service; we are here to assist you at any time.
Is Black Silicon Carbide harder than Aluminum Oxide?
+
-
Yes. Black Silicon Carbide is harder and sharper than Aluminum Oxide, making it suitable for processing harder materials.
Can Black Silicon Carbide be used for sandblasting?
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Yes. It is widely used as a sandblasting abrasive due to its sharp particle shape and efficient cleaning performance.
What materials can Black Silicon Carbide process?
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It is suitable for glass, ceramics, stone, cast iron, non-ferrous metals, and many hard or brittle materials.
What grit sizes are available?
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Standard grit sizes range from F12 to F1200, with customized specifications available upon request.
Is Black Silicon Carbide reusable?
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Yes. Depending on the application and blasting conditions, Black Silicon Carbide can often be recycled multiple times.
Looking for a reliable Black Silicon Carbide supplier for abrasive manufacturing, sandblasting, grinding, or refractory applications?
Contact our team today for technical consultation, customized specifications, bulk pricing, and fast global delivery solutions.
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