High B-value Silicon Steel Laminations for Large Power Transformers

Hi-B (high magnetic flux density) silicon steel laminations for step-up/step-down power transformers over 10 MVA capacity. Precision cut for three-phase core stacking configurations. HTS 8504.90.96.34 designates these for stacked transformer core assembly.

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.

8504.90Same rate: 35%

If for instrument transformers

Laminations for current/voltage transformers classified under precision instrument transformer parts.

8501.32Lower: 27% vs 35%

If complete cast resin dry-type transformer

Fully assembled transformers, even with laminated cores, classified as complete units under 8504.22/8504.23.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Submit transformer nameplate data and core design calculations confirming lamination specifications

Large laminations (>1m) require special crating; document dimensions for proper freight classification

Utility purchase orders serve as strong end-use evidence for power transformer application

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