ASTM A234 WP11 Large Diameter Tee from Canada
A straight tee fitting of alloy steel (ASTM A234 WP11) for butt welding with 400 mm inside diameter, used in high-temperature petrochemical pipelines. Classified under HTS 7307.93.90 as a butt welding fitting with internal diameter over 360 mm. Essential for branching large industrial gas lines.
Duty Rate — Canada → United States
14.3%
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
Import Tips
• Include heat treatment records proving compliance with ASTM standards to satisfy technical verification
• Declare exact alloy composition to distinguish from carbon steel rates and avoid anti-dumping scrutiny
• Use proper packing to prevent distortion during transit, as customs may inspect for damage-related reclassification