Forged Alloy Steel Mill Grinding Balls
Although primarily cast, certain alloy steel balls are forged then heat-treated for superior toughness in overflow ball mills. If truly cast, they align with this tariff item as cast grinding articles for mills.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | +50.0% | 50% |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the balls are forged rather than cast
Forged steel balls are classified as other articles of iron or steel.
If they are not grinding balls but other cast mill parts
Other cast articles of iron or steel.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Confirm whether the balls are cast or forged; forged balls belong under a different tariff item
• Provide heat treatment details to support classification
• Ensure the invoice clearly states the manufacturing process
Related Products under Tariff item 7325.91.00
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