13-3/8 inch 72 lb/ft L-80 Type 13Cr Casing from Canada
Seamless alloy steel oil well casing pipe with 13-3/8 inch outside diameter, 72 lb/ft weight, L-80 grade with 13% chromium content, threaded and coupled for enhanced corrosion resistance in sour gas environments. Classified under HTS 7304.29.31.80 due to its seamless construction from other alloy steel, use in oil/gas drilling, and OD exceeding 406.4 mm. The threading and coupling facilitate secure connections in downhole applications.
Duty Rate — Canada → United States
50%
Rate breakdown
9903.82.0250%Except as provided for in headings 9903.82.14, 9903.85.67 and 9903.85.68, articles of aluminum, of steel or of copper and derivative aluminum or steel articles, as provided for in subdivisions (c)(i)–(v) of U.S. note 16 to this subchapter
9903.05.900%Articles of aluminum, of steel or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; patented pharmaceutical articles; and semiconductor articles, as provided in subdivision (f) of U.S. note 52 to this subchapter
Import Tips
• Verify alloy steel composition meets 'other alloy steel' criteria via mill test certificates; ensure API 5CT certification for L-80 grade
• Common pitfall: misclassifying as carbon steel if chromium exceeds thresholds
• Provide end-use declaration for drilling to avoid anti-dumping scrutiny