Corrosion-Resistant Alloy Steel Transmission Pipe from Canada
Welded pipe of high-alloy steel (e.g., 5% Cr) with OD >406.4 mm for natural gas transmission lines. Under HTS 7305.39.50.00 as other welded alloy steel tubes/pipes meeting diameter and cross-section criteria.
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
• Provide NACE MR0175 compliance certs for sour service environments
• Exact diameter measurements prevent disputes with 7306 smaller pipes
• Document as 'transmission pipe' not casing to stay out of OCTG headings