Corrosion-Resistant Alloy Steel Pipe for Chemical Processing from Canada
Longitudinally welded duplex alloy steel pipe exceeding 406.4 mm diameter for corrosive chemical transport in industrial plants. HTS 7305.31.60.90 applies to this other large welded alloy tube. Duplex stainless provides pitting resistance in chloride environments.
Duty Rate — Canada → 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
• Specify PREN value (>35 for duplex) in material certs for alloy verification
• Passivation certification required for corrosion warranty claims