HVAC Duct Blackplate Steel
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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If thickness not qualifying as blackplate (≥0.361 mm)
Blackplate thickness limit strictly <0.361 mm; exceeds moves to 'other' cold-rolled.
If imported as fabricated duct fittings
Assembled duct structures classify as structures/articles vs flat sheet.
If painted at mill
Mill painting constitutes nonmetallic coating = further worked.
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Import Tips & Compliance
• 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
Related Products under HTS 7209.18.25.85
ECCS Blackplate Steel Coils
Electrolytically cleaned cold-rolled blackplate steel coils, thickness below 0.361 mm, width over 600 mm, nonalloy composition. Falls under HTS 7209.18.25.85 as cold-reduced, not further worked despite cleaning (not a coating). Primarily imported for metal packaging like aerosol cans and closures.
Automotive Blackplate Steel for Fuel Tanks
Cold-rolled blackplate coils <0.361 mm thick for automotive fuel tank fabrication, nonalloy steel, ≥600 mm wide. HTS 7209.18.25.85 classification for cold-reduced not-further-worked flat products. Selected for weldability and formability in tank seaming.
Battery Can Blackplate Steel Coils
Specialty blackplate for alkaline battery cans, ultra-thin <0.361 mm cold-rolled nonalloy steel coils ≥600 mm wide. Classifies under HTS 7209.18.25.85 as not further worked cold-reduced product. High purity surface essential for battery performance.
Industrial Aerosol Can Blackplate
Cold-rolled blackplate coils for 2-piece aerosol cans, <0.361 mm thick, nonalloy steel ≥600 mm wide. HTS 7209.18.25.85 for cold-reduced not coated/clad coils. Provides necessary strength and deep drawability for seamless can bodies.
Food Container Blackplate DC-05UD Grade
DC-05UD ultra-deep drawing blackplate for food containers, <0.361 mm cold-rolled nonalloy coils ≥600 mm. HTS 7209.18.25.85 classification for precise cold-reduced blackplate specs. Optimized for severe forming without earing.
Electronics Enclosure Blackplate
Precision cold-rolled blackplate <0.361 mm for electronics chassis/enclosures, nonalloy coils ≥600 mm. HTS 7209.18.25.85 for cold-reduced not-further-worked flat-rolled products. Low carbon ensures excellent spot weldability.