K55 Surface Casing 13-3/8 Inch 54.5 ppf from China
K55 nonalloy seamless surface casing, 10-3/4 inch (273 mm) OD, 54.5 lb/ft, 16.0 mm wall thickness, BTC threaded and coupled. Installed as first string to prevent collapse in shallow well sections. HTS 7304.29.1040 for thick wall oil/gas casing specs.
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
• Certify exact weight per foot to confirm wall thickness calculation; discrepancies lead to measurement disputes
• Include PVC thread protectors in shipments—lost protectors cause damage claims
• Pre-clear with CBP for large volumes; bond requirements apply for high-value shipments