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SITCSection 7
U.S. imports of parts for electric industrial or laboratory furnaces, ovens & heating equipment (SITC 74135) totaled $38.3M in April 2026, traded with 47 countries.
Importers of Parts for Electric Industrial or Laboratory Furnaces, Ovens & Heating Equipment paid $2.2M in duties in April 2026 — an effective duty rate of 6.3% on $35.0M in dutiable value, based on actual customs collections rather than the published tariff schedule. Parts for Electric Industrial or Laboratory Furnaces, Ovens & Heating Equipment imports of $38.3M in April 2026 ran 27% above the year-to-date monthly average of $30.1M.
Last updated: April 2026 dataHeating elements, refractory liners, electrode assemblies, control modules, and other components destined for electric industrial or laboratory furnaces and ovens are consolidated under this parts heading, which spans the full range of electric thermal equipment covered by the adjacent complete-unit headings. Accurate classification requires establishing that the part is principally designed for electric furnace or oven use, as many components—such as thermocouples, refractory bricks, or power controllers—are also used in non-furnace applications and could be classified elsewhere. Section 301 tariffs on Chinese-origin goods may apply to certain parts, and the applicable rate can differ from that on the complete furnace, making a line-by-line tariff review worthwhile for high-volume spare-parts procurement.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Graphite electrodes have their own dedicated HTS classification and are generally not classified as furnace parts, even when their end use is exclusively in electric arc furnaces. The principal-use rule does not override a specific tariff provision for the article itself. Importers should confirm the correct heading for electrodes separately from the furnace parts heading and consult a customs broker if the electrode is a novel form or composite material.
Software transmitted electronically is generally not subject to customs duties as an imported 'good,' but physical media (e.g., a programmed control board or firmware chip) imported as a replacement part for a furnace control system would be classified based on the physical article. A replacement control board designed solely for a specific furnace model would typically fall under this parts heading, while a general-purpose industrial computer would not.
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| Country | Imports | Exports | Balance |
|---|---|---|---|
| JAPAN | $7.6M | $33.1M | +$25.4M |
| UNITED KINGDOM | $373K | $20.0M | +$19.6M |
| GERMANY | $13.0M | $580K | -$12.4M |
| KOREA, SOUTH | $5.5M | $1.3M | -$4.3M |
| MEXICO | $2.9M | $1.5M | -$1.4M |
Monthly import values over time