Low Chrome Cast Steel Grinding Balls from Canada
Cast steel balls with 1-10% chromium content, engineered for semi-autogenous grinding (SAG) mills in mining operations. Classified under HTS 7325.91.00.00 due to their cast construction and specific use as mill grinding media. They provide balanced impact and abrasion resistance for large-scale ore processing.
Duty Rate — Canada → United States
12.9%
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
• Label shipments clearly as 'grinding balls for mills' with diameter (e.g
• 50-150mm) to distinguish from ornamental or toy balls
• Obtain supplier affidavits confirming no wire-forming process, as dimensions often exceed 16mm wire limit in Chapter 73 notes