Large Diameter Alloy Steel Penstock Pipe
This is a large-diameter welded alloy steel pipe, exceeding 406.4 mm in external diameter, used in hydroelectric penstocks to convey water to turbines. It is classified under tariff item 7305.39.00 as an 'other' welded tube or pipe of iron or steel with a circular cross-section and large diameter.
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 |
PGA flags (1)Show detailsHide detailsGACSteelRequired
- GAC
Steel · Required
Global Affairs Canada: GAC Steel (Carbon Steel) requires review / declaration data. CBSA's Single Window matching criteria match this classification number (Within Range 7304000000–7306999999).
CBSA Single Window matching criteria, unknown
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 penstock pipe is longitudinally submerged arc welded
This subheading specifically covers longitudinally submerged arc welded line pipe.
If the penstock pipe is welded by a method other than submerged arc
This covers other welded line pipe of circular cross-section.
If the pipe is part of a tower or lattice structure
Towers and lattice masts 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
• Ensure the pipe is welded and has a circular cross-section with an external diameter over 406.4 mm
• Provide CBSA with project specifications showing the pipe's use in hydroelectric infrastructure
• If the pipe is imported as part of a larger hydroelectric project, explore duty relief or remission options
Related Products under Tariff item 7305.39.00
Alloy Steel Large Chimney Flue Pipe
> Welded alloy steel flue pipe sections exceeding 406.4 mm in external diameter for industrial incinerator chimneys. The product's welded construction and circular cross-section place it under tariff item 7305.39.00 as "Other" welded tubes and pipes of iron or steel.
Alloy Steel Welded Culvert Pipe
> Heavy-duty welded alloy steel pipe with an external diameter exceeding 406.4 mm, designed for stormwater drainage and culverts in infrastructure projects. Its welded construction and circular cross-section place it under tariff item 7305.39.00.
Alloy Steel Welded Piling Pipe
> Extra-large welded alloy steel pipe with an external diameter exceeding 406.4 mm, used as foundation piling in offshore platforms and bridges. Its welded construction and circular cross-section place it under tariff item 7305.39.00.
Alloy Steel Welded Ventilation Duct Pipe
> Large-diameter welded alloy steel pipe for industrial exhaust and ventilation systems in factories, with an external diameter exceeding 406.4 mm. Its welded construction and circular cross-section place it under tariff item 7305.39.00.
API 5L Grade B Alloy Steel Welded Pipe
> Large-diameter welded pipe made from alloy steel, with an external diameter over 406.4 mm, used primarily for oil and gas transmission pipelines. Its welded construction and circular cross-section place it under tariff item 7305.39.00.
Carbon Steel Large Welded Sewer Pipe
> Welded pipe from nonalloy steel with an external diameter exceeding 406.4 mm, designed for sanitary sewer mains with a protective bituminous coating. Its circular cross-section and welded construction place it under tariff item 7305.39.00 as "Other" welded tubes and pipes of iron or steel.