Large Stainless Steel Welded Stack Pipe
Large stainless steel stack pipe, 610 mm in external diameter, longitudinally welded, intended for industrial chimney exhaust systems handling acidic gases. The corrosion-resistant stainless steel construction ensures durability in harsh flue gas environments. This product is classified under tariff item 7305.31.00 as a welded tube of iron or steel with a circular cross-section exceeding 406.4 mm.
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 stack pipe is seamless
Seamless pipes of circular cross-section exceeding 406.4 mm are classified under heading 7304.
If the external diameter is 406.4 mm or less
Smaller diameter welded pipes fall under heading 7306.
If the pipe is part of a prefabricated chimney structure
Structures and parts of structures of iron or steel are classified under heading 7308.
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 the pipe's external diameter (610 mm) and longitudinal weld are specified in the packing list
• Provide documentation on the stainless steel grade to avoid reclassification disputes
• Check if the pipe requires additional coatings or linings for acidic gas service, which may affect valuation
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