4-1/2 inch N80-1 Casing Pipe from Canada
Seamless N80-1 alloy steel casing with 4-1/2 inch OD, threaded and coupled with premium EUE connections for shallow oil production wells. Wall thickness less than 12.7 mm provides optimal strength-to-weight ratio for liner applications. Classified in 7304.29.31.10 for its seamless alloy steel construction and drilling-specific design.
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 marking includes API grade, size, and seamless designation per API Spec 5CT
• Provide collapse and burst test data from MTC for customs valuation support
• Avoid common pitfall of declaring as 'line pipe' which changes classification to 7304.90