Seamless Pressure Piping for Refineries from Mexico
Heavy-duty seamless pipe for refinery process piping, 184.2 mm OD with 32 mm wall thickness from nonalloy steel. Engineered for corrosive hydrocarbon service at elevated temperatures. HTS 7304.39.0044 for seamless nonalloy steel circular tubes in specified OD/wall dimensions.
Duty Rate — Mexico → 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
• NACE MR0175 sour service certification often required; affects material classification proof
• Distinguish refinery pipe from OCTG via service affidavits to avoid higher OCTG duties
• Thickness verification critical; exceeds 19 mm threshold ensures correct statistical break