Transformer Core Lamination Stack

Thin sheets of electrical steel stacked to form the magnetic core of power transformers. Classified under HTS 8504.90.96.90 as a part of electrical transformers, specifically the core component essential for magnetic flux conduction.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+35.0%35%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

7225.11.00Same rate: 35%

If imported as raw material, not assembled into transformer core

Loose grain-oriented silicon-electrical steel sheets classified by material composition in Chapter 72, not as transformer parts

8504.40.95Same rate: 35%

If considered a complete static converter rather than just a part

Finished power supplies or converters go under specific static converter subheadings, not parts

8503.00.95Higher: 38% vs 35%

If designed specifically for use in electric motors

Parts of motors/generators classified under heading 8503 when end-use is motor-specific

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Import Tips & Compliance

Verify material composition (grain-oriented vs non-oriented steel) for correct classification; obtain mill test certificates for steel quality; watch for anti-dumping duties on certain steel imports