4-1/2 Inch N-80 Casing with BTC Threads from Mexico

Seamless N-80 nonalloy steel casing pipe, 4-1/2 inch OD, 9.5 mm wall thickness, featuring buttress thread couplings (BTC) for oil well applications. Classified under HTS 7304.29.10.10 as threaded/coupled seamless casing of iron/nonalloy steel with OD <215.9 mm and wall <12.7 mm for drilling.

Duty Rate — Mexico → 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 threading type (e.g

BTC, LTC) is documented; mismatches can lead to reclassification

Provide pressure test reports and chemical composition analysis for customs verification

Label packages clearly with HTS code, dimensions, and 'OIL WELL CASING' to prevent inspection delays