Iron Chimney Flue Liner Tube
Iron chimney flue liner tube is a single-wall nonalloy steel tube used for chimney flue liners in masonry fireplaces, with a 6-inch diameter. It is a hollow profile of iron or nonalloy steel, not further worked than welded, and falls under tariff item 7306.90.00 as 'Other' tubes, pipes, and hollow profiles.
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 flue liner tube has a circular cross-section and an external diameter not exceeding 406.4 mm
Other welded tubes of circular cross-section, of iron or nonalloy steel, may be more specific if the tube is round and within the diameter limit.
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 flue liner tube complies with Canadian building codes (e.g
• ULC S635) for fireplace installations
• Declare the tube's diameter and wall thickness accurately to CBSA
• Keep documentation showing the tube is not further worked beyond welding, to support classification under this item
Related Products under Tariff item 7306.90.00
17-4PH Stainless Alloy Steel Hollow Bar
A precipitation-hardened 17-4PH stainless alloy steel hollow bar, machined from tube for use in valve bodies and pump shafts. It qualifies as an 'other' tube or hollow profile of iron or steel under tariff item 7306.90.00 because it is not specifically classified elsewhere in the chapter.
Alloy Steel Bicycle Frame Tube Set
A pre-cut, mitered tube set made from 4130 chromoly alloy steel, intended for custom bicycle frame fabrication. Each individual tube is classified under tariff item 7306.90.00 as an 'other' alloy steel hollow profile, as they are not welded or seamless tubes of a specific type listed elsewhere.
Alloy Steel DOM Tubing for Automotive Roll Cages
Drawn-over-mandrel (DOM) tubing made from 4130 alloy steel, with a round profile, used for racing car roll cage construction. It falls under tariff item 7306.90.00 as an 'other' tube of alloy steel, not being a line pipe, casing, or other specific type.
Alloy Steel Fitness Equipment Frame Tube
DOM or welded 4130 alloy steel tubing used for weightlifting racks and gym equipment frames. It is classified under tariff item 7306.90.00 as an 'other' hollow profile of alloy steel, as it is not a specific type of tube listed elsewhere in the chapter.
Alloy Steel Furniture Frame Tubing
Welded oval or rectangular tubing made from 4130 or 4140 alloy steel, used for high-end office furniture legs and frames. It falls under tariff item 7306.90.00 as an 'other' hollow profile of alloy steel, not being a structural section of heading 7308.
Alloy Steel Gun Barrel Blank Tube
Deep-hole drilled 4140/416R alloy steel blanks used for rifle barrel manufacturing. It is classified under tariff item 7306.90.00 as an 'other' hollow profile of alloy steel, as it is not a specific type of tube listed elsewhere in the chapter.