Alloy Steel Pressure Piping for Oil Refineries 220mm OD 22mm WT from China
Seamless circular alloy steel tube with 220 mm OD and 22 mm wall thickness, used in high-pressure process lines for petroleum refineries. Classified under HTS 7304.59.80.55 for its alloy steel composition, seamless form, OD between 190.5-285.8 mm, and thick walls suited for extreme conditions.
Duty Rate — China → United States
35%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.91.0125%Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter
Import Tips
• Obtain API or ASTM certifications to prove pressure rating compliance and avoid reclassification
• Declare exact dimensions and steel grade; pitfalls include incorrect OD measurement leading to wrong subheading
• For refinery use, note any special coatings but ensure they don't alter tube classification