Cold-Drawn High-Pressure Boiler Header Tube TP304H from Canada
Cold-drawn TP304H seamless tube for high-pressure boiler headers and manifolds. Higher carbon for elevated temperature strength. Classified 7304.51.50.45 for boiler use.
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
• Higher carbon certs distinguish 304H from standard 304
• Header tubes often larger OD; confirm statistical size breaks