13-3/8 inch 54.5 ppf Q-125 Stainless Steel Casing Tubing from China
Seamless duplex stainless steel tubing (13-3/8 inch OD) rated Q-125 for surface casing in high-pressure oil and gas wells. Used to line boreholes during drilling operations, meeting API 5CT specifications. Large diameter >406.4 mm qualifies for HTS 7304.24.60.75 as stainless steel oilfield tubing.
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
• Obtain third-party inspection certificates confirming seamless construction (no welds visible via NDT)
• Declare exact grade (Q-125) and yield strength in commercial invoice to prevent undervaluation disputes
• For sour service applications, include NACE MR0175 compliance docs to support classification