Silicon Carbide Crude Furnace Tap
Direct furnace-tapped crude silicon carbide in molten-poured lump form, unrefined with impurities. HTS 2849.20.10.00 for crude silicon carbides per hierarchy. Chapter notes confirm inclusion unless radioactive or organo-inorganic.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If high ferro content
Ferro-silicon carbide alloys classify as ferroalloys in Chapter 72.
If as slag or waste from smelting
Impure furnace residues are slags, not chemically defined carbides.
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Import Tips & Compliance
• Furnace log and tap analysis required for crude verification; bulk shipping docs prevent parts classification
• Avoid: heat treatment implying completion
Related Products under HTS 2849.20.10.00
Crude Silicon Carbide (SiC) Lumps
Crude silicon carbide in irregular lump form, produced by high-temperature reaction of silica sand and carbon, used primarily as an abrasive raw material. Classified under HTS 2849.20.10.00 as crude silicon carbide, not chemically defined or refined into specific shapes. It falls in Chapter 28 as a carbide per chapter notes, excluding sintered metal carbides.
Ferrosilicon Carbide Crude Briquettes
Crude ferrosilicon carbide in loose briquette form from smelting furnace process, containing silicon carbide with iron impurities. HTS 2849.20.10.00 applies to crude silicon carbides, including alloyed variants before refinement. Chapter 28 covers such carbides unless excluded as sintered cermets.
Black Silicon Carbide Crude Chunks
Black crude silicon carbide chunks from Acheson furnace process, irregular shapes with >97% SiC content. Fits HTS 2849.20.10.00 for crude silicon carbides, chemically defined per subheading note via Chapter 28 criteria. Excluded from Chapter 38 if not put up for retail or fire-extinguishers.
Green Silicon Carbide Crude Nuggets
Crude green silicon carbide nuggets achieved via petroleum coke addition in furnace, higher purity for specialty uses. Under 2849.20.10.00 as crude silicon carbide, meeting Chapter 28/29 chemical definition notes. Not classified as artificial graphite per exclusions.
Metallurgical Grade Crude SiC Lumps
Crude silicon carbide lumps for metallurgical recarburizing in steel production, 85-90% SiC. Classified 2849.20.10.00 as crude per subheading; Chapter 28 for non-sintered carbides. Excludes Section XV metals.