Seamless Steel Boiler Tube OD 250mm WT 10mm from Mexico
A seamless tube of non-alloy steel with circular cross-section, outside diameter 250mm and wall thickness 10mm, used in high-pressure boilers for heat transfer. It falls under HTS 7304.39.0048 due to its seamless construction, non-alloy steel material, OD between 190.5-285.8mm, and wall thickness under 12.7mm. These tubes are precision-engineered for structural integrity in industrial heating systems.
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
• Verify seamless manufacturing via mill test certificates to avoid misclassification as welded under 7306
• Include hydrostatic test reports showing pressure resistance for boiler end-use compliance
• Label with exact OD, wall thickness, and steel grade to match statistical suffix requirements