Ferrosilicon Magnesium Alloy 75Mg
Ferrosilicon magnesium alloy containing 75% silicon, over 2% magnesium by weight, used primarily as a nodulizing agent in ductile iron production. This ferroalloy falls under HTS 7202.29.0010 due to its ferrosilicon base with elevated magnesium content for magnesium treatment in foundries. It improves the mechanical properties of cast iron by forming nodular graphite.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If magnesium content is 2% or less
Ferrosilicon without over 2% magnesium falls under the base ferrosilicon subheading excluding high-magnesium variants.
If chemically defined as prepared additive for foundry use
Certain prepared foundry additives not purely ferroalloys may classify under chemical preparations rather than Chapter 72 ferroalloys.
If considered other ferroalloys not specified as ferrosilicon-based
Ferroalloys with magnesium but lacking primary ferrosilicon composition shift to the residual ferroalloys category.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Obtain mill test certificates verifying magnesium content over 2% by weight to confirm classification; ensure proper labeling as UN3178 hazardous material for magnesium alloys; declare exact chemical composition to avoid reclassification to standard ferrosilicon
Related Products under HTS 7202.29.00.10
FeSiMg 10-15% Magnesium Nodulizer
Granulated ferrosilicon magnesium nodulizer with 10-15% magnesium content by weight, designed for magnesium treatment in spheroidal graphite iron casting. Classified under HTS 7202.29.0010 as ferrosilicon containing over 2% magnesium, distinguishing it from standard ferrosilicon. The high magnesium enables graphite nodulization for enhanced ductility.
High-Magnesium Ferrosilicon 5% Mg
Ferrosilicon alloy with 5% magnesium by weight, supplied in lump form for use in gray and ductile iron production. Meets HTS 7202.29.0010 criteria as 'other' ferrosilicon containing over 2% magnesium, used in desulfurization and nodulization processes. The magnesium content exceeds the threshold distinguishing it from conventional ferrosilicon.
FeSiMgRE Rare Earth Magnesium Nodulizer
Ferrosilicon magnesium with rare earth elements and over 8% magnesium by weight, used for inoculation in ductile iron castings. Falls under HTS 7202.29.0010 as ferrosilicon containing over 2% magnesium, with rare earths enhancing nodulization efficiency. Common in automotive and pipe manufacturing foundries.
Industrial Ferrosilicon Magnesium 3% Mg Lumps
Lump-form ferrosilicon with 3% magnesium content by weight, for industrial magnesium recovery and iron alloying. Classified in HTS 7202.29.0010 due to magnesium exceeding 2% in the ferrosilicon matrix. Used in steelmaking for desoxidation and modification.
Ductile Iron FeSiMg 12% Magnesium Alloy
Specialty ferrosilicon magnesium alloy with 12% magnesium for ductile iron production, in standard foundry granules. HTS 7202.29.0010 applies as 'other' ferrosilicon with over 2% magnesium per U.S. note definitions. Promotes spherical graphite formation for high-strength castings.