Tubing
Other tubes, pipes and hollow profiles (for example, open seamed or welded, riveted or similarly closed), of iron or steel: > Casing and tubing of a kind used in drilling for oil or gas: > Welded of stainless steel: > Tubing
Duty Rate (from China)
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
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
Products classified under HTS 7306.21.80
API 5CT N80 Stainless Steel Oil Well Tubing
Welded stainless steel tubing conforming to API 5CT N80 specifications, used in oil and gas drilling operations to line and protect the borehole. Its seamless-like welded construction and high-strength properties classify it under HTS 7306.21.80 as tubing for drilling applications. The stainless steel composition ensures corrosion resistance in harsh downhole environments.
4-1/2 inch 13Cr Stainless Steel Tubing
Welded 13Cr (13% chromium) stainless steel tubing, 4-1/2 inch OD, for corrosive oil/gas drilling environments like CO2 fields. HTS 7306.21.80 applies to its specific welded design for well completion and production. Offers superior pitting resistance over standard carbon steel.
13-3/8 inch L80 Stainless Steel Drilling Tubing
Welded stainless steel tubing with 13-3/8 inch outer diameter and L80 grade, designed for intermediate casing and production tubing in oil/gas wells. Classified under HTS 7306.21.80 due to its welded construction and specific application in drilling operations. Provides enhanced collapse resistance for deepwell environments.
2-7/8 inch P110 Welded Stainless Tubing
High-pressure P110 grade welded stainless steel tubing, 2-7/8 inch diameter, used as production tubing in high-yield oil and gas wells. Falls under HTS 7306.21.80 for its welded stainless construction tailored for drilling and extraction. Ideal for sour service environments with H2S resistance.
7 inch Duplex Stainless Oilfield Tubing
Welded duplex stainless steel tubing (2205 grade), 7-inch diameter, for high-strength oil and gas production tubing strings. Classified in HTS 7306.21.80 as welded stainless tubing for drilling due to its corrosion-fatigue resistance in severe conditions. Used in extended reach drilling operations.
3-1/2 inch Super Duplex Tubing
Welded super duplex stainless (2507 grade) tubing, 3-1/2 inch, for ultra-corrosive oil/gas wells with high chloride content. HTS 7306.21.80 covers this welded stainless product designed explicitly for drilling tubing applications. Maximizes uptime in subsea completions.
5-1/2 inch 316L Stainless Production Tubing
Welded 316L stainless steel tubing, 5-1/2 inch OD, used as production tubing in natural gas wells to convey hydrocarbons. Fits HTS 7306.21.80 as welded stainless steel tubing for oil/gas drilling operations. Low carbon content prevents weld decay in moist environments.
9-5/8 inch Stainless Cased Tubing
Welded stainless steel tubing serving dual role as casing/tubing in 9-5/8 inch oil wells, providing zonal isolation. Though primarily tubing, classified under HTS 7306.21.80 for welded stainless drilling applications. Critical for hydraulic fracturing operations.
2-3/8 inch EUE Threaded Stainless Tubing
Welded stainless steel tubing with 2-3/8 inch EUE (External Upset Ends) threads for gas lift applications in oil production. HTS 7306.21.80 classification reflects welded stainless construction for drilling/production tubing. Enables reliable gas injection into wells.
4-1/2 inch Premium Beveled Stainless Tubing
Welded stainless steel tubing with 4-1/2 inch premium beveled ends for weld-on connections in drilling risers. Under HTS 7306.21.80 as specialized welded stainless tubing for oil/gas applications. Designed for riser and liner hangers.