Super Duplex 2507 Stainless Steel Sour Gas Line Pipe from Canada
High-strength seamless super duplex 2507 stainless steel pipe for sour gas pipelines, PREN >40 for extreme corrosion resistance. Used in high-pressure gathering lines from wells. Classified under 7304.11.00 as stainless steel seamless line pipe for gas pipelines.
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
• Super duplex requires positive material identification (PMI) testing documentation
• Declare exact wall thickness/schedule as it affects pressure rating verification
• For offshore pipeline use, include DNV-OS-F101 qualification certificates