4-1/2 Inch 12.6 lb/ft N80-1 Stainless Casing from Canada
Liner casing 4-1/2 inch with N80-1 grade stainless steel, threaded and coupled for intermediate hole sections. Used in horizontal drilling applications. HTS 7304.24.30 due to seamless stainless construction and oilfield casing function.
Duty Rate — Canada → United States
10%
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
• Ensure coupling stock certificates trace to same heat as pipe body
• Document premium class thread inspection (VAM TOP, USCO) if not standard API
• Verify collapse and burst ratings meet or exceed API 5CT minimums