Grinding balls and similar articles for mills
Other cast articles of iron or steel. > Other: > Grinding balls and similar articles for mills
Duty Rate (from China)
Products classified under Tariff item 7325.91
Cast Iron Sag Mill Grinding Media Balls
Heavy-duty cast iron balls designed for SAG and AG mills, featuring domed surfaces that promote optimal cascading action. Their cast iron composition and specific grinding function for mills place them under tariff item 7325.91.00 as other cast articles of iron or steel.
7325.91.00Chrome-Moly Cast Grinding Balls for Cement Mills
Chromium-molybdenum alloy cast balls optimized for cement clinker grinding in tube mills. Their cast structure and mill-specific design align with tariff item 7325.91.00 as grinding balls for mills, providing extended wear life in high-abrasion environments.
7325.91.00Forged Alloy Steel Mill Grinding Balls
These are alloy steel balls used in ball mills for grinding ores, coal, and other materials. Although some are forged, those that are cast and heat-treated for toughness are classified here as cast articles of iron or steel, specifically as grinding balls for mills.
7325.91.00Heat-Treated Cast Steel Mill Balls 75mm
Uniform 75mm diameter cast steel balls, double heat-treated for maximum abrasion resistance in secondary grinding circuits. These are specifically classified under tariff item 7325.91.00 as cast grinding balls for mills, given their cast steel construction and standard size.
7325.91.00High Chrome Cast Iron Grinding Balls
Cast iron grinding balls with high chromium content (10-18%), used in ball mills for grinding ores and minerals. They fall under tariff item 7325.91.00 as cast articles of iron or steel specifically designed for mill grinding applications.
7325.91.00Low Chrome Cast Steel Grinding Balls
Cast steel balls with 1-10% chromium content, engineered for semi-autogenous grinding (SAG) mills in mining operations. Their cast construction and specific use as mill grinding media place them under tariff item 7325.91.00.
7325.91.00Martensitic Cast Grinding Media for Coal Mills
Martensitic white iron cast balls for pulverizing coal in thermal power plants. Tariff item 7325.91.00 applies due to their cast construction and mill grinding purpose, engineered for low contamination in fuel processing.
7325.91.00White Cast Iron Grinding Pebbles for Mills
Elongated cast iron pebbles resembling balls, used interchangeably in rod mills for fine grinding. Tariff item 7325.91.00 includes 'similar articles' covering these non-spherical mill media, with high hardness from white iron microstructure.