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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If calcium >30% by weight
Ferrocalcium with dominant Ca content classifies under separate 7202.92 subheading.
If rare earth calcium silicide
Complex silicides with rare earths move to inorganic chemical classifications.
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Import Tips & Compliance
• Declare calcium volatility and reaction heat data; ship in nitrogen-purged containers; obtain secondary steelmaking approvals for composition
Related Products 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.