Silicon Steel Stacked Transformer Core from China
A laminated stack of silicon steel sheets forming a core designed for assembly into power distribution transformers. These cores provide the magnetic pathway essential for transformer operation and are imported as unfinished components for final winding and enclosure. Classified under HTS 8504.90.96.38 as stacked cores specifically for incorporation into transformers.
Duty Rate — China → United States
Rate breakdown
Import Tips
• Verify core material composition (e.g
• grain-oriented silicon steel) via mill test certificates to confirm HTS classification and avoid reclassification as iron articles
• Ensure documentation specifies 'stacked for transformer incorporation' to distinguish from finished cores; include end-use statements for transformer manufacturers
• Watch for weight-based valuation pitfalls; stacked cores often ship in bulk—declare net weight accurately to prevent duty underpayment claims