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
50%
Rate breakdown
9903.82.0250%Except as provided for in headings 9903.82.14, 9903.85.67 and 9903.85.68, articles of aluminum, of steel or of copper and derivative aluminum or steel articles, as provided for in subdivisions (c)(i)–(v) of U.S. note 16 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
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