Zinc-Plated Alloy Steel HVAC Duct Flange
Zinc-plated alloy steel HVAC duct flange is a flat-rolled galvanized alloy steel strip used to reinforce duct connections in ventilation systems. It is classified under tariff item 7226.99.00 as an 'other' flat-rolled product of other alloy steel, less than 600 mm wide, with a zinc coating not otherwise specified.
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 7225000000–7229999999).
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 zinc coating is applied by hot-dip or other non-electrolytic method
Subheading 7226.92 covers flat-rolled products of other alloy steel, under 600 mm wide, otherwise plated or coated with zinc.
If the flange is formed into a finished duct component
Heading 7308 covers structures and parts of structures of iron or steel, including duct flanges.
If the base metal is non-alloy steel
Heading 7212 covers flat-rolled iron or non-alloy steel, width less than 600 mm, otherwise plated or coated with zinc.
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 flange is supplied as a flat strip, not pre-formed into angles or channels, which would classify under heading 7308
• Provide the alloy steel grade and zinc plating details to support the tariff classification
Related Products under Tariff item 7226.99.00
25CrMo4 Pressure Vessel Alloy Strip
25CrMo4 alloy steel strip, 280 mm wide and 3.2 mm thick, normalized for pressure vessel fabrication. It is a flat-rolled product of other alloy steel (chromium-molybdenum) with a width of less than 600 mm, not further worked than hot-rolled or cold-rolled, and not coated or plated. This falls under tariff item 7226.99.00 as 'Other' flat-rolled products of other alloy steel.
30CrNiMo8 Heavy Duty Alloy Sheet
30CrNiMo8 high-strength alloy steel sheet, 520 mm wide and 4.2 mm thick, for crane hooks. It is a flat-rolled product of other alloy steel (nickel-chromium-molybdenum) with a width under 600 mm, not further worked than hot-rolled or cold-rolled. This falls under tariff item 7226.99.00 as 'Other' flat-rolled products of other alloy steel.
34CrNiMo6 Alloy Steel Strip
34CrNiMo6 nitriding alloy steel strip, 420 mm wide and 1.6 mm thick, for shafts. It is a flat-rolled product of other alloy steel (chromium-nickel-molybdenum) with a width under 600 mm, not further worked than hot-rolled or cold-rolled. This falls under tariff item 7226.99.00 as 'Other' flat-rolled products of other alloy steel.
41Cr4 Alloy Steel Band
41Cr4 chromium alloy steel band, 250 mm wide and 3.5 mm thick, for fasteners. It is a flat-rolled product of other alloy steel (chromium) with a width under 600 mm, not further worked than hot-rolled or cold-rolled. This falls under tariff item 7226.99.00 as 'Other' flat-rolled products of other alloy steel.
50CrMo4 Quenched Alloy Steel Strip
50CrMo4 alloy steel strip, quenched and tempered, 350 mm wide and 2 mm thick, for hydraulic cylinder rods. It is a flat-rolled product of other alloy steel (chromium-molybdenum) with a width under 600 mm. Heat treatment such as quenching and tempering is not considered 'further working' that changes classification, so it falls under tariff item 7226.99.00 as 'Other' flat-rolled products of other alloy steel.
6150 Spring Alloy Steel Strip
6150 chromium-vanadium alloy steel strip, cold-rolled, 200 mm wide and 1.2 mm thick, for automotive leaf springs. It is a flat-rolled product of other alloy steel (chromium-vanadium) with a width under 600 mm, not further worked than cold-rolled. This falls under tariff item 7226.99.00 as 'Other' flat-rolled products of other alloy steel.