Silicon Steel Laminations for Power Transformer Cores
Thin silicon steel sheets designed for stacking into laminated cores used in electrical power transformers. These laminations reduce eddy current losses through electrical insulation between layers. Classified under HTS 8504.90.96.34 as laminations specifically for incorporation into stacked cores of transformers.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for inductors or chokes
Laminations intended for inductor cores fall under the separate inductor parts subheading rather than transformer-specific laminations.
If imported as bulk grain-oriented steel sheets
Uncut silicon electrical steel in coils or sheets before lamination processing classified under iron/steel chapter by material form.
If already assembled into complete power transformer
Fully assembled transformers with stacked laminated cores are classified as complete units, not separate parts.
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Import Tips & Compliance
• Verify lamination thickness and insulation coating meet transformer core stacking specifications to avoid reclassification
• Provide manufacturer specs confirming use solely for stacked transformer cores, not wound cores
• Check for steel origin certificates as anti-dumping duties may apply to certain silicon steel imports
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