FeSiCa Deoxidizer 72/4.2
Industrial-grade FeSiCa 72% silicon, 4.2% calcium deoxidizer for continuous casting operations. Classified HTS 7202.21.10.00 due to meeting exact ferrosilicon composition thresholds: >55% Si, 55-80% range, >3% Ca. Packaged in 1-ton flexible intermediate bulk containers.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If marketed as pure silicon or high-purity silicon metal
Silicon metal >99% purity classifies under inorganic chemicals Chapter 28.
If for ferrosilicon with ≤55% silicon but similar calcium content
Lower silicon ferrosilicon has distinct subheading.
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Import Tips & Compliance
• Require supplier to provide wet chemistry analysis confirming calcium >3% threshold
• Ensure containers are dry and sealed; moisture exposure voids classification
Related Products under HTS 7202.21.10.00
FeSiCa 65/6 Nodularizer Alloy
High-calcium ferrosilicon with 65% Si and 6% Ca content, specifically formulated for magnesium treatment in ductile iron foundries. Falls under HTS 7202.21.10.00 as ferrosilicon 55-80% Si with >3% calcium per U.S. note specifications. Distributed in sealed moisture-proof containers.
FeSiCa 75 Alloy with 5% Calcium
Ferrosilicon alloy containing 75% silicon, over 5% calcium by weight, used primarily as a deoxidizer and inoculant in steel production. Classified under HTS 7202.21.10.00 due to exceeding 55% silicon, 55-80% silicon range, and more than 3% calcium content per chapter note definitions. Supplied in standard 1 MT jumbo bags for foundry applications.
Calcium-Rich FeSi 70/4 Alloy
FeSiCa alloy with 70% silicon and 4% calcium, designed for nodular iron production as a nodularizer. Meets HTS 7202.21.10.00 criteria with silicon between 55-80% and calcium >3% by weight. Typically packaged in 25kg bags or 1MT supersacks for metallurgical applications.
High-Calcium FeSi 78/3.5 Alloy
Premium ferrosilicon alloy at 78% silicon and 3.5% calcium, used for deoxidation in specialty steel grades. Precisely matches HTS 7202.21.10.00 with 55-80% Si and >3% Ca composition. Supplied in bulk or 50kg drums for steel mill consumption.
Nodulizing FeSiCa 68/5 Alloy
Specialty nodulizing ferrosilicon-calcium alloy with 68% Si and 5% Ca for spheroidal graphite iron production. HTS 7202.21.10.00 applies as it contains 55-80% silicon and >3% calcium by weight. Comes in hermetically sealed 25kg PVC bags.