Seamless 4.5-inch OD Nonalloy Line Pipe for Sour Gas Service from Canada
Specialized seamless steel pipe, 114 mm OD, designed for sour gas pipelines with H2S resistance, nonalloy composition per NACE standards. Under HTS 7304.19.10.20 for small-diameter seamless line pipe of iron/nonalloy steel used in gas pipelines. Critical for corrosive environments in gas fields.
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/ISO 15156 compliance certs for sour service to validate pipeline use
• Ensure no alloying elements exceed nonalloy thresholds (e.g
• <1.65% Cr)