Narrow Galvanized Lock Forming Strip
550 mm wide hot-dip galvanized steel strip for Pittsburgh lock forming in ductwork fabrication. HTS 7212.30.5000 covers this nonalloy zinc-coated flat product under 600 mm width, other coating. Essential for commercial HVAC systems.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If profiled or corrugated
Surface-worked beyond coating (corrugations) moves to 7216 angles/shapes.
If electrolytically zinc-coated
Electroplating method has specific subheading vs hot-dip 'other' coating.
If preformed into duct sections
Assembled ductwork becomes fabricated steel structures in 7308.
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Import Tips & Compliance
• SMACNA standards require minimum G40 coating; certify accordingly
• Prevent width creep during rolling that exceeds 600 mm threshold
• Edge condition (mill/slit) affects pricing but not HTS classification
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