MRI Superconducting Magnet Shims
Precision iron-nickel shims for field homogenization in superconducting MRI magnet assemblies. Classified as parts of electromagnetic apparatus under 8505.90.75.01.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If parts identifiable for magnetic resonance imaging apparatus
MRI-specific magnet parts classify under medical instrument heading 9018.
If imported as complete electromagnet cores
Finished electromagnet assemblies have specific parts classification.
If imported as basic alloy steel shapes
Unspecified magnetic steel classifies under Chapter 72.
Not sure which classification is right?
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Import Tips & Compliance
• Provide homogeneity specifications (ppm/cm³) and alloy composition
• Include FDA 510(k) or biocompatibility documentation if patient-contact
• Specify quench protection integration and thermal expansion coefficients
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