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Ferroalloys: > Ferrosilicon: > Other > Other
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 7202.29.00.50
Electrolytic Ferrosilicon 85%
High-grade ferrosilicon 85% produced via electrolytic process for ultra-low impurity levels in ESR steelmaking. 'Other' under HTS 7202.29.0050. Vacuum arc remelting compatible.
Ferrosilicon Rare Earth Master Alloy
Ferrosilicon 70% base with 1-3% rare earth elements (Ce/La) for steel inclusion modification. HTS 7202.29.0050 as complex 'other' ferrosilicon. Improves fatigue resistance.
Ferrosilicon 75% Grade Standard
Ferrosilicon containing approximately 75% silicon and 25% iron, used primarily as a deoxidizer and alloying agent in steel production. This alloy falls under HTS 7202.29.0050 as 'other' ferrosilicon not specified elsewhere in the ferrosilicon subheading. It is supplied in lump form typically ranging from 10-100mm.
Ferrosilicon 72% FeSi Lumps
Standard ferrosilicon alloy with 72% silicon content in irregular lump form, widely used in foundries for silicon addition and slag formation in iron casting. Classified under HTS 7202.29.0050 as unspecified 'other' ferrosilicon. Typical size range is 10-50mm for optimal furnace feeding.
High-Purity Ferrosilicon 90% Grade
Premium ferrosilicon with 90% silicon content and minimal impurities, used in high-grade steel and superalloy production requiring precise silicon control. Falls under HTS 7202.29.0050 as 'other' ferrosilicon beyond standard grades. Supplied in smaller lumps or crushed form for specialty applications.
Ferrosilicon 65% Foundry Grade
Ferrosilicon alloy with 65% silicon specifically blended for foundry applications in ductile iron production, aiding nodulization. Classified as 'other' ferrosilicon under HTS 7202.29.0050 since it doesn't match specific silicon percentage subheadings. Commonly packaged in 1MT big bags.
Atomized Ferrosilicon Powder 75%
Finely atomized ferrosilicon powder with 75% silicon content, used in powder metallurgy and as a raw material for silicon-based compounds. Meets HTS 7202.29.0050 definition for 'other' ferrosilicon despite powder form, as not further worked beyond atomization. Particle size typically <100 mesh.
Ferrosilicon Zirconium Inoculant
Ferrosilicon-based inoculant alloy containing zirconium additions (typically 2-5%) for gray iron casting microstructure control. Classified under HTS 7202.29.0050 as 'other' ferrosilicon since base is ferrosilicon with minor alloying elements. Used in small quantities per melt.
Low-Alumina Ferrosilicon 75%
Ferrosilicon 75% with controlled low aluminum content (<1%) for electric arc furnace steelmaking where Al pickup must be minimized. Falls under 'other' ferrosilicon HTS 7202.29.0050. Preferred for clean steel production.
Ferrosilicon Magnesium Nodulizer
Composite ferrosilicon alloy containing 5-10% magnesium for ductile iron nodulization, with silicon base >70%. Classified as 'other' ferrosilicon under HTS 7202.29.0050 despite Mg addition, as primary constituent. Supplied in airtight drums.
Crushed Ferrosilicon 10-50mm
Crushed ferrosilicon lumps sized 10-50mm from 75% standard grade, optimized for submerged arc furnace feeding. Remains HTS 7202.29.0050 'other' ferrosilicon as crushing is not 'further working' per chapter notes. Common bulk import specification.
Ferrosilicon Calcium Alloy
Ferrosilicon base alloy with 28-32% calcium content for steel deoxidation and desulfurization. Classified under HTS 7202.29.0050 as 'other' ferrosilicon despite Ca addition, based on primary silicon-iron matrix. Cored wire compatible.
FeSi 45% Silicon Recovery Grade
Lower silicon ferrosilicon (45%) designed for high recovery rates in aluminum and magnesium alloy production. HTS 7202.29.0050 'other' as outside standard high-silicon categories. Fine-tuned for non-ferrous applications.
Premium Low-Carbon Ferrosilicon
Ferrosilicon 75% with carbon content <0.1% for applications requiring minimal carbon pickup in specialty steels. 'Other' ferrosilicon under HTS 7202.29.0050. Critical for low-carbon steel grades.
Ferrosilicon Barium Inoculant
Ferrosilicon 70-75% with 2-6% barium for cast iron inoculation promoting fine graphite structure. HTS 7202.29.0050 'other' ferrosilicon category. Enhances mechanical properties.