Amorphous Metal Laminations for Energy-Efficient Transformer Cores
Thin amorphous metal alloy ribbons cut into laminations for stacking into high-efficiency distribution transformer cores. These offer lower core losses than traditional silicon steel. Specifically covered by HTS 8504.90.96.34 for transformer stacked core laminations.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for audio/output transformers
Laminations for smaller audio frequency transformers classified under separate transformer type subheading.
If imported as uncut amorphous ribbon coils
Amorphous metal strip in coils before lamination classified under Chapter 72 as flat-rolled alloy products.
If containing significant copper windings
Partially wound cores with substantial copper content may shift to complete inductor/transformer classification.
Not sure which classification is right?
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Import Tips & Compliance
• Provide material safety data sheets confirming amorphous metal alloy composition (Fe-Si-B)
• Include efficiency certification or DOE compliance docs for energy-efficient transformer applications
• Ensure packaging prevents ribbon edge damage during transit, affecting core performance
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