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HSChapter 28
U.S. imports of silicon carbide (crude and processed) (HS 284920) totaled $6.1M in April 2026, traded with 16 countries.
Importers of Silicon Carbide (Crude and Processed) paid $28K in duties in April 2026 — an effective duty rate of 0.5% on $5.5M in dutiable value, based on actual customs collections rather than the published tariff schedule. Silicon Carbide (Crude and Processed) imports of $6.1M in April 2026 ran 42% below the year-to-date monthly average of $10.5M.
Last updated: April 2026 dataSilicon carbide is a critical abrasive and refractory material widely used in grinding wheels, cutting tools, semiconductor substrates, and high-temperature industrial applications. The US tariff schedule distinguishes between crude silicon carbide (2849201000) and grain, ground, or refined forms (2849202000), with the processing grade determining end-use suitability. China dominates US supply by a wide margin, followed by Norway and Taiwan, making this heading a recurring focus of Section 301 trade-remedy exposure for importers sourcing from Chinese producers. Buyers should verify grit size, purity specifications, and origin documentation carefully, as crude and refined grades carry different classification and pricing implications.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
HTS 2849201000 covers crude silicon carbide as produced directly from the furnace, while 2849202000 covers material that has been further processed into grain, ground, or refined forms. The distinction matters for duty calculation and end-use classification, particularly when the same shipment contains mixed particle sizes.
Yes. Silicon carbide imported from China is subject to Section 301 tariffs. Importers should confirm the applicable tariff action and any product-specific exclusions with a licensed customs broker before entry, as rates and exclusion lists have changed over time.
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Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 2849202000 | CARBIDE, CHEM DEFINED/NT, IN GRAIN/GROUND/REFINED | $5.6M | 0.51% | $28K |
| 2849201000 | CARBIDE, CHEM DEFINED/NT, OF SILICON, CRUDE | $430K | -- | -- |
CARBIDE, CHEM DEFINED/NT, IN GRAIN/GROUND/REFINED
CARBIDE, CHEM DEFINED/NT, OF SILICON, CRUDE
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2849201000 | CARBIDE, CHEM DEFINED/NT, OF SILICON, CRUDE | $3.9M |
| 2849202000 | CARBIDE, CHEM DEFINED/NT, IN GRAIN/GROUND/REFINED | $1.0M |
CARBIDE, CHEM DEFINED/NT, OF SILICON, CRUDE
497.2K kg
CARBIDE, CHEM DEFINED/NT, IN GRAIN/GROUND/REFINED
575.9K kg
URANIUM ENRICHED IN U235 ETC. PLUTONIUM ETC.
HS 284420
NATURAL URANIUM & COMPOUNDS, ALLOYS & CERAMICS ETC
HS 284410
ANHYDROUS AMMONIA
HS 281410
ALLOYS, DISPERSIONS,ISOTOPES & COMPOUNDS NES
HS 284443
SILICON, UNDER 99.99% (BY WEIGHT) SILICON
HS 280469
PHOSPHORIC ACID AND POLYPHOSPHORIC ACIDS
HS 280920
| State | Imports | Exports | Balance |
|---|---|---|---|
| Pennsylvania | $1.9M | $3.6M | +$1.7M |
| Nevada | $1.2M | -- | -$1.2M |
| New York | $851K | $237K | -$614K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| NEW ORLEANS, LA | $337K | $3.5M | +$3.2M |
| NEWARK, NJ | $1.5M | $25K | -$1.5M |
| OAKLAND, CA | $1.2M | -- | -$1.2M |