Ductile Cast Iron Coupling 6-inch from Canada
A straight cast iron coupling for joining plain-end pipes in underground water mains. HTS 7307.19.90.80 applies to this other cast fitting of iron, suitable for municipal water distribution. Features higher tensile strength than gray iron.
Duty Rate — Canada → United States
56.2%
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
• Include nodularity test reports for ductile iron verification per ASTM A536
• Declare exact ID/OD dimensions; mismatches lead to customs holds
• Avoid declaring as 'ductile iron pipe' which falls under Chapter 73 pipe headings