6.625 Inch OD 316L Stainless Casing Tubing from China
Seamless 316L stainless steel tubing with 6.625-inch (168.275 mm) outside diameter for intermediate casing in oil and gas drilling. Fits HTS 7304.24.60.45 as stainless, seamless drill tubing in the designated size range for petroleum exploration.
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 dimensional inspection reports confirming OD tolerance within ±0.5% for customs verification
• Distinguish from line pipe by providing drilling rig end-use affidavits