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HSChapter 72
U.S. imports of ferrosilicon with over 55% silicon (HS 720221) totaled $17.3M in April 2026, traded with 22 countries.
Importers of Ferrosilicon with Over 55% Silicon paid $1.0M in duties in April 2026 — an effective duty rate of 9.8% on $10.4M in dutiable value, based on actual customs collections rather than the published tariff schedule. Ferrosilicon with Over 55% Silicon imports of $17.3M in April 2026 ran 13% above the year-to-date monthly average of $15.4M.
Last updated: April 2026 dataFerrosilicon above 55% silicon is a critical deoxidizer and alloying agent for carbon steel, stainless steel, and cast iron, and is also a precursor in silicon metal production. The US schedule subdivides this grade by both silicon content and calcium level — distinguishing 55–80% silicon with over 3% calcium (7202211000), 55–80% silicon with 3% or less calcium (7202215000), and material above 90% silicon (7202219000). Canada and Iceland are the leading suppliers, with Iceland's energy-intensive smelting capacity making it a structurally important source. All ferrosilicon imports are subject to Section 232 tariffs, and antidumping orders have historically applied to certain origins.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Calcium-bearing ferrosilicon (inoculant grade) has distinct metallurgical properties used in cast iron treatment and inclusion shape control in steel. The 3% calcium threshold in lines 7202211000 and 7202215000 separates these specialty inoculant grades from standard deoxidizer-grade material, which affects both classification and, potentially, AD/CVD scope applicability.
Material above 90% silicon approaches the purity of silicon metal (classified in heading 2804) and is used in chemical, semiconductor, and solar-grade silicon production rather than primarily as a steelmaking additive. Importers should carefully review whether very high-purity material might be more correctly classified as silicon metal under Chapter 28, as the boundary between ferrosilicon and silicon metal is a known classification dispute area.
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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| CANADA | $4.7M | $275K | -$4.4M |
| NORWAY | $2.8M | -- | -$2.8M |
| AZERBAIJAN | $2.3M | -- | -$2.3M |
| ANGOLA | $2.3M | -- | -$2.3M |
| ICELAND | $1.2M | -- | -$1.2M |
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 7202215000 | FERROSILICON OV 55 NOV 80 PCT SI 3 PCT OR LS CALCM | $17.0M | 9.72% | $980K |
| 7202211000 | FERROSILICON OV 55 NOV 80 PCNT SI OV 3 PCT CALCIUM | $275K | 14.67% | $40K |
| 7202219000 | FERROSILICON OVER 90 PERCENT SILICON | $4K | 15.80% | $587 |
FERROSILICON OV 55 NOV 80 PCT SI 3 PCT OR LS CALCM
FERROSILICON OV 55 NOV 80 PCNT SI OV 3 PCT CALCIUM
FERROSILICON OVER 90 PERCENT SILICON
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7202210000 | FERROSILICON MORE THAN 55 PERCENT SILICON | $423K |
FERROSILICON MORE THAN 55 PERCENT SILICON
188.6K kg
NONALLOY PIG IRON 0.5 PRCNT OR LESS PHOSPHORUS
HS 720110
SEMIFINISHED PRODUCTS OF ALLOY STEEL NOT STAINLESS
HS 722490
SMFD IRN/NAL STL LT .25 PCT CRB RECT CS WID 2X THK
HS 720712
FR IOS NAL 600MM AO W TIN CTD OR PLTD UNDR 0.5MM T
HS 721012
FERROUS WASTE & SCRAP NESOI, TURNINGS, CHIPS ETC
HS 720441
FERROUS WASTE & SCRAP NESOI
HS 720449
| State | Imports | Exports | Balance |
|---|---|---|---|
| Maryland | $4.1M | -- | -$4.1M |
| Pennsylvania | $2.5M | $6K | -$2.4M |
| Kentucky | $2.4M | -- | -$2.4M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| BALTIMORE, MD | $5.1M | -- | -$5.1M |
| NEW ORLEANS, LA | $4.2M | -- | -$4.2M |
| PORT HURON, MI | $3.2M | $5K | -$3.2M |