HVAC Duct Blackplate Steel from China
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 — China → United States
35%
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
9903.91.0125%Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 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