Black Silicon Carbide for the Metallurgical Industry
Black silicon carbide (Black SiC, BSiC) is a high-performance industrial material widely used in metallurgy for its high hardness, high melting point, excellent wear resistance, corrosion resistance, and high-temperature stability.
Main Applications
- Ceramic Filters for Molten Metal Purification
- Used as the main aggregate for SiC ceramic foam filters & cross-flow filters
- Grades like 600# and 800# are typical for forming fine filter layers to remove inclusions in molten steel, iron, and aluminum
- Improves casting quality, reduces porosity, and enhances mechanical properties
- Refractory Materials
- Added to refractory bricks, castables, and lining materials for blast furnaces, ladles, and tundishes
- Improves thermal shock resistance, slag erosion resistance, and service life
- Deoxidizer & Alloy Additive
- Acts as a deoxidizer in steelmaking, replacing or supplementing silicon iron
- Provides silicon and carbon to adjust molten steel composition
- Reduces oxide inclusions and stabilizes steel quality
- Abrasive & Surface Treatment
- Used for grinding, polishing, and sandblasting metallurgical equipment, rolls, and castings
- Removes scale, burrs, and oxide layers efficiently
Key Advantages in Metallurgy
- High temperature resistance (stable above 1600°C)
- Strong resistance to molten metal and slag corrosion
- High hardness and wear resistance
- Good thermal conductivity and thermal shock stability
- Lower cost compared with green silicon carbide