Hot-Dip Galvanized HVAC Duct Flange
Narrow galvanized steel strip, 450 mm wide, hot-dip zinc coated for use in HVAC duct connectors. Fits HTS 7212.30.5000 as nonalloy steel flat-rolled product under 600 mm width with zinc coating not qualifying as electrolytic plating. Provides rust protection in ventilation systems.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If coated with aluminum-zinc alloy
Galvalume (55% Al-Zn) coatings are classified separately from pure zinc under 7212.50.
If in coils and not further coated
Uncoated hot-rolled coils under 600 mm move to 7208; coating shifts to 7212.
If assembled into complete HVAC parts
Finished HVAC components are classified by function in Chapter 84, not as base metal.
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Import Tips & Compliance
• Include coating adhesion test results; poor adhesion may trigger quality disputes at entry
• Declare exact width and confirm nonalloy composition to avoid alloy steel headings in 7225
• Watch for minimum coating weights required by ASTM A653 standards for proper classification
Related Products under HTS 7212.30.50.00
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A flat-rolled galvanized steel sheet, width 500 mm, coated with zinc via hot-dip process for corrosion resistance. Classified under HTS 7212.30.5000 as a flat-rolled product of nonalloy steel, less than 600 mm wide, and zinc-coated but not specifically electrolytically plated. Used primarily for roofing in construction.
Zinc-Coated Steel Strapping Band
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Hot-Dip Galvanized Furring Channel Strip
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