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Gray Iron Blooming Mill Roll

Large diameter gray iron roll for initial breakdown of steel ingots in blooming mills. Meets HTS 8455.30.00.05 criteria as gray iron rolling mill roll not exceeding 2,268 kg.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+40.0%40%
🇲🇽MexicoFree+15.0%15%
🇨🇦CanadaFree+15.0%15%
🇩🇪GermanyFree+15.0%15%
🇯🇵JapanFree+15.0%15%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8455.90.40Same rate: 40%

If cast steel roughing rolls

Steel construction rolls for roughing service have different tariff treatment.

7326.90Lower: 15.4% vs 40%

If for earth moving equipment

Gray iron rollers for construction machinery classified separately.

8483.90.80Higher: 52.8% vs 40%

If parts of other transmission machinery

Rolls incorporating gear teeth or drive components.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.

Import Tips & Compliance

• Include chemical analysis showing 3-3.5% carbon typical of gray iron microstructure

• Use specialized roll lifting beams for safe customs inspection

• Register for ACE system early for heavy machinery parts clearance