Harmonized System
U.S. imports of nonelectric industrial or laboratory furnaces & ovens for heat treatment of ores, pyrites, or metals (HS 841710) totaled $5.4M in August 2026, imported from 23 countries.
Importers of Nonelectric Industrial or Laboratory Furnaces & Ovens for Heat Treatment of Ores, Pyrites, or Metals paid $570K in duties in August 2026, an effective tariff rate of 10.65% of the $5.4M imported — duty actually collected as a share of that value, not the published tariff schedule. Nonelectric Industrial or Laboratory Furnaces & Ovens for Heat Treatment of Ores, Pyrites, or Metals imports of $5.4M in August 2026 ran 19% below the year-to-date monthly average of $6.6M.
Last updated: August 2026 dataNonelectric roasting, smelting, and heat-treatment furnaces used in metallurgical and mineral processing — including rotary kilns, shaft furnaces, and reverberatory furnaces — enter under a single tariff line (8417100000). These are capital-intensive, often custom-engineered units central to primary metals production, ore beneficiation, and pyrite roasting operations. Canada leads US imports under this heading, followed by Italy and Germany, consistent with the concentration of metallurgical engineering expertise in those countries. Because these furnaces are large, project-specific installations, importers frequently use temporary importation or bonded entry procedures during commissioning.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
10 shipments/mo
A rotary kiln designed for the heat treatment of ores or metals classifies under 8417100000 when it is nonelectric. Electric versions fall under heading 8514. The key classification criteria are the fuel/energy source (nonelectric) and the primary function (heat treatment of ores, pyrites, or metals rather than, say, drying or chemical processing).
Given their size and value, these furnaces are often imported under formal entry with detailed commercial invoices and engineering specifications. Temporary importation under bond (TIB) may apply for demonstration or testing units. Importers should also consider whether the furnace arrives in multiple shipments as components, which may require a ruling on whether to classify as a complete machine under GRI 2(a).
HSChapter 84
Subheading 3 of 4 in heading 8417
Subheading 841710 · $5.4M of $24.5M
Trade Directory
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ImportsExports
Imports
$5.4MYoY · free account
Exports
$1.4MYoY · free account
12-mo low · imports
YoY · free accountOver the twelve months to August 2026, the U.S. imported $75.1M of Nonelectric Industrial or Laboratory Furnaces & Ovens for Heat Treatment of Ores, Pyrites, or Metals.
Through August 2026. Source: U.S. Census Bureau.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 8417100000 | Furv,Oven,Roast,Melt,Treat,Ore,Pyr,Mlt,Ind,Lab,N/E | $5.4M | 10.65% | 100.00% | $570K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8417100000 | Furv,Oven,Roast,Melt,Treat,Ore,Pyr,Mlt,Ind,Lab,N/E | $1.4M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Imports · August 2026
origin
Czech Republic and Italy together supply 83% of it.
customs district
destination
entry
rate provision · imports
duty collected equals 10.65% of total import value.