</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

Cast Iron Ventilation Duct Pipe from Japan

Rigid cast iron hollow pipe for industrial ventilation and exhaust systems. Under HTS 7303.00.00.90 as other cast iron pipes, suitable for high-temperature air movement. Resistant to warping under heat.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

Import Tips

Specify ventilation end-use in invoices to differentiate from pressure ducts

Test for cast iron metallurgy to prevent steel misclassification