HVAC Duct Cold-Rolled Steel Sheet
Cold-rolled galvanized-kill steel sheet 1.0mm thick x 1220mm for HVAC duct fabrication, nonalloy uncoated. HTS 7209.90.00.00 for other cold-rolled flat-rolled products ≥600mm width. Lock-forming quality for spiral duct machines.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If previously hot-dip galvanized
Sheets from galvanized hot-rolled stock retain coating classification in 7210 even after cold-rolling.
If pre-formed into duct sections
Further worked into duct shapes classifies as structures in 7308, not flat-rolled.
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Import Tips & Compliance
• Specify lock-forming grade (TDC/TDF) in import docs for proper end-use verification
• Ensure no zinc-iron alloy layer from prior hot-dip; that would be 7210 coated product
• Thickness gauging critical; ultrasonic testing docs prevent under/over declaration
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