13-3/8 inch 72 lb/ft L-80 Type 13Cr Casing from China
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 — China → United States
75%
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
9903.91.0125%Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
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