Silicon Carbide 80% & 85% Lump for Metallurgical Applications
Metallurgical-grade Silicon Carbide 80% and 85% lump is specifically designed for cast iron production, steelmaking, and furnace treatment applications. This material serves as an efficient source of both silicon and carbon for various metallurgical processes.
Product Specifications
| Parameter |
SiC 80% Lump |
SiC 85% Lump |
| Product Type |
Metallurgical Silicon Carbide |
Metallurgical Silicon Carbide |
| SiC Content |
80% grade |
85% grade |
| Form |
Lump |
Lump |
| Primary Function |
Silicon and carbon source, deoxidation |
Silicon and carbon source, deoxidation |
| Applications |
Cast iron, steelmaking, furnace treatment |
Cast iron, steelmaking, furnace treatment |
| Particle Size |
Customized per furnace requirements |
Customized per furnace requirements |
Chemical Composition Reference
SiC content serves as the principal grade identifier. Typical commercial 80% SiC steelmaking products may specify:
- SiC ≥80%
- SiO₂ ≤10%
- Free carbon ≤10%
- Fe₂O₃ ≤1.0%
- S ≤0.05%
- Moisture ≤1%
Note: This represents a market reference and not a guaranteed specification. Buyers should define specific chemical limits based on their process requirements.
Product Characteristics & Functions
Key Benefits
- Silicon Addition: Supplies silicon during molten-metal treatment
- Carbon Addition: Provides carbon for recarburization and carbon adjustment
- Deoxidation: Functions as a deoxidizing material in steel and foundry processes
- Furnace Treatment: Lump form suitable for direct furnace charging
Primary Applications
- Cast Iron Production (gray, ductile, and malleable iron)
- Steelmaking processes
- Electric Furnace Treatment
- Metallurgical Additives and briquette production
Technical Procurement Guidelines
When evaluating SiC lump products, consider the following factors:
- SiC content requirements
- Particle-size distribution
- Free carbon content
- Relevant oxide impurities
- Sulfur and phosphorus controls
- Moisture content
- Furnace charging methodology
- Target silicon and carbon levels
Buyer Specification Checklist
| Requirement |
Details to Provide |
| Grade |
SiC 80% or SiC 85% |
| Form |
Lump |
| SiC Content |
Required grade specification |
| Size |
Required lump size range |
| Application |
Cast iron, steelmaking, or furnace treatment |
| Quantity |
Required order quantity |
| Packing |
Required packaging specifications |
| Destination |
Delivery port / country |
| Documents |
COA, SDS, and inspection requirements |
Quality & Documentation
Purchasing specifications should clearly identify SiC grade, particle size, and controlled impurities. Chemical analysis documentation (COA) is provided for supplied materials, along with SDS and packing information as required.
Frequently Asked Questions
What is SiC 80% lump used for?
It serves as a metallurgical silicon and carbon source in steelmaking, cast-iron production, and furnace treatment applications.
What is SiC 85% lump used for?
SiC 85% is used where higher SiC-content metallurgical additives are required for steel or foundry applications.
Can SiC lump be used in cast iron production?
Yes, metallurgical SiC is commonly used in cast-iron production as a source of silicon and carbon.
Is SiC lump a deoxidizer?
Yes, metallurgical SiC functions as a deoxidizing material in steel and foundry treatment processes.
What size should I order?
Size selection depends on furnace type, charging method, and reaction requirements. Available sizes range from fine granules to larger lumps.
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