Ferrosilicon 90% High Purity
High-purity ferrosilicon with 90% silicon content, used in high-grade steel and magnesium production. Classified under HTS 7202.29.00 as other ferrosilicon not meeting low-silica criteria. Typically produced via submerged arc furnace and supplied in crushed form.
Import Duty Rates by Country of Origin
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If silicon content exceeds 99%
Nearly pure silicon products are classified as chemical elements under Chapter 28 rather than ferroalloys.
If inadvertently misanalyzed with silicon below 55%
Lower silicon content shifts classification to the low-silica ferrosilicon subheading with potentially different duties.
If it's ferrosilicomanganese instead
Presence of manganese above specified levels reclassifies to ferrosilicomanganese heading.
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Import Tips & Compliance
• Require supplier certificates of analysis for silicon percentage verification; use moisture-proof packaging to maintain alloy integrity; be aware of anti-dumping duties that may apply to certain origins
Related Products under HTS 7202.29.00
Ferrosilicon for Magnesium Production
Special ferrosilicon (78% Si) used in Pidgeon process for magnesium metal production. Falls under HTS 7202.29.00 as unspecified other ferrosilicon grade. Supplied in briquettes or standard lumps for thermal reduction furnaces.
Standard FeSi 45% Lumpy Ferroalloy
FeSi 45% with moderate silicon for general steel deoxidation, classified under HTS 7202.29.00 other ferrosilicon. Common in basic oxygen furnace steelmaking operations. Lump size 10-80mm standard.
High-Carbon Ferrosilicon 72%
Ferrosilicon 72% with higher carbon content for specific foundry applications, under HTS 7202.29.00. Used where carbon recovery in cast iron is beneficial. Typical C content 0.1-0.2%.
FeSi 75% for Electrode Manufacturing
Ferrosilicon 75% grade optimized for welding electrode production, HTS 7202.29.00 other. Low phosphorus/sulfur for clean welds. Ground to specific mesh sizes.
Low-Alumina Ferrosilicon 70%
Ferrosilicon 70% with controlled low alumina (<0.5%) for electroslag remelting steel production. HTS 7202.29.00 classification. Critical impurity control for ultra-clean steels.
Ferrosilicon Briquettes 65% Si
Briquetted ferrosilicon 65% for convenient furnace charging, under HTS 7202.29.00. Binding doesn't constitute 'further working' per chapter notes. Density optimized for steel ladles.