Ferrosilicon 88% Metallurgical Grade
Metallurgical-grade ferrosilicon with 88% silicon, widely used in steelmaking for silicon addition and deoxidation, particularly in continuous casting processes. This ferroalloy is specifically covered by HTS 7202.21.75.00 for its 80-90% silicon composition by weight. It enhances steel fluidity and strength properties.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If refined to 99%+ purity silicon
High-purity silicon is classified as a chemical element rather than an iron alloy.
If ferro-silicon containing 55% or less silicon
Base ferrosilicon grades with lower silicon fall under the initial ferrosilicon subheading.
If in powdered form as metallurgical additive
Powdered ferroalloys may be treated as slag or ash preparations depending on processing.
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Import Tips & Compliance
• Ensure documentation distinguishes from high-purity silicon to prevent misclassification; comply with steel industry import quotas if applicable; test for aluminum and calcium content as these affect duty subclasses
Related Products under HTS 7202.21.75.00
Ferrosilicon 85% Grade Alloy
Ferrosilicon alloy containing 85% silicon by weight, used primarily as a deoxidizer and alloying agent in steel production to remove oxygen and improve steel quality. This product falls under HTS 7202.21.75.00 because it is a ferroalloy with silicon content between 80% and 90% by weight. It is typically supplied in lump form for metallurgical applications.
High-Silicon Ferrosilicon 82/84 Lumps
Lump-form ferrosilicon with 82-84% silicon content, essential for producing low-carbon steels and as a source of silicon in foundry applications. Classified under HTS 7202.21.75.00 due to its silicon weight percentage between 80% and 90% in an iron-silicon alloy matrix. Commonly used in electric arc furnaces for steel desoxidation.
Ferrosilicon 80/82% Foundry Grade Lumps
Foundry-grade ferrosilicon lumps with 80-82% silicon content, used in iron foundries to improve cast iron quality and nodulizing treatment. Falls under HTS 7202.21.75.00 as ferrosilicon alloy within the specified silicon range. Supplied in sizes suitable for furnace charging.
Premium Ferrosilicon 85/90 Alloy
Premium quality ferrosilicon alloy graded at 85-90% silicon, optimized for high-performance steel applications requiring precise silicon control. Classified in HTS 7202.21.75.00 for its high silicon-iron composition without exceeding 90%. Low impurity levels make it ideal for specialty steels.
Ferrosilicon 83% Deoxidizer Grade
Deoxidizer-grade ferrosilicon at 83% silicon content, specifically formulated for oxygen removal in molten steel during secondary metallurgy. This product matches HTS 7202.21.75.00 criteria for ferrosilicon with 80-90% silicon by weight. Available in standard lump sizes for ladle additions.
Ferrosilicon 87% Steel Alloying Lump
Steel alloying ferrosilicon lumps containing 87% silicon, used to adjust silicon levels in various steel grades including structural and automotive steels. Covered by HTS 7202.21.75.00 for its precise 80-90% silicon-iron alloy composition. High density and reactivity in furnace conditions.