4-1/2 inch 13.8# Alloy Casing from Canada
13.8 lb/ft seamless alloy steel casing, 4-1/2 inch OD (114.3 mm) with 10.2 mm calculated wall thickness per API tables. Production casing for oil wells, precisely matching HTS 7304.23.60.45 parameters for small diameter heavy wall alloy drill pipe.
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
• Nominal weight (13.8#) must correlate exactly with OD/wall thickness per API 5CT tables
• Internal diameter calculations required to verify plain end vs coupled configurations
• Plain end vs threaded&couplings affects declaration; specify connection status clearly