Low Chrome Cast Steel Grinding Balls from China
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 — China → United States
37.9%
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
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
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