Low Chrome Cast Steel Grinding Balls from Mexico
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 — Mexico → United States
52.9%
Rate breakdown
9903.82.0250%Except as provided for in headings 9903.82.14, 9903.85.67 and 9903.85.68, articles of aluminum, of steel or of copper and derivative aluminum or steel articles, as provided for in subdivisions (c)(i)–(v) of U.S. note 16 to this subchapter
9903.03.060%Articles of aluminum, of steel, or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; and semiconductor articles, of any country, as provided in subdivision (aa)(v) 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