HVAC Duct Blackplate Steel from Mexico
Thin blackplate coils <0.361 mm for HVAC duct fabrication, cold-rolled nonalloy steel ≥600 mm wide. Fits HTS 7209.18.25.85 as uncoated cold-reduced product. Selected for Pittsburgh seam lock forming in spiral duct machines.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Duct gauge typically 26-28 ga (0.45-0.50 mm total, but base <0.361 mm)—verify composite thickness
• ASTM A1008 standard common—reference in import docs for quality assurance
• Galvannealed confusion risk—ensure no zinc coating present for this classification