Cu-Si Master Alloy 10% Silicon from Mexico
Copper-silicon master alloy with 10% silicon, supplied as cut pieces for bronze foundries to achieve precise silicon bronze compositions. Classified under HTS 7405.00.60.50 as other copper master alloys. Essential for castings requiring corrosion resistance and strength.
Duty Rate — Mexico → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Document silicon content precisely; high silicon may trigger bronze alloy scrutiny per subheading notes
• Use 'master alloy' nomenclature consistently across shipping documents
• Provide evidence of complete dissolution in copper melts to distinguish from alloy scrap