5-1/2 inch 20# L80 Type 9Cr Casing from China
9Cr martensitic alloy steel seamless casing, 5-1/2 inch, 20 lb/ft, L80 grade with threaded couplings for corrosive CO2 environments in gas wells. Precisely matches HTS 7304.29.31 for alloy steel drilling casing. Enhances longevity in acidic formations.
Duty Rate — China → United States
35%
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
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
Import Tips
• Include NACE compliance for sour service grades; verify Cr content for alloy status
• Pitfall: declaring as 'stainless' incorrectly
• Use proper dunnage to prevent thread damage