Rhenium Heat Exchanger Fin from United States
Thin rhenium fins designed for high-temperature heat exchangers in rocket engines. These are precision-fabricated articles of rhenium, not raw metal, and are classified under the 'Other' tariff item for rhenium.
Duty Rate — United States → Canada
0%
Import Tips
• Classify these as articles of rhenium, not as aerospace machinery parts, to avoid Section XVII exclusions
• Provide engineering drawings to show they are fins, not complete heat exchangers
• Verify rhenium purity for customs documentation