CDA 521 Phosphor Bronze Strip 5.5mm from Germany
CDA 521 grade phosphor bronze strip at 5.5mm thickness, featuring 8% tin and 0.2% phosphorus for excellent fatigue resistance. Classified in HTS 7409.39.10.30 for its phosphor bronze alloy, copper-tin base, and thickness over 5mm. Used in electrical contacts and diaphragms requiring high strength.
Duty Rate — Germany → United States
13%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Reference ASTM B103 standard in documentation to validate CDA 521 phosphor bronze composition
• Measure thickness precisely at multiple points; slight variations could trigger reclassification
• Include end-use statements if for defense applications to comply with ITAR export controls on import