Having a wall thickness exceeding 9.5 mm
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: > Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: > Other: > Tubing: > Of other alloy steel > Having an outside diameter not exceeding 114.3 mm: > Having a wall thickness exceeding 9.5 mm
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 7304.29.61.30
API 5CT L80 Alloy Steel Oilfield Tubing
Seamless tubing made from L80 grade alloy steel, designed for oil and gas downhole applications with an outside diameter not exceeding 114.3 mm and wall thickness over 9.5 mm. Classified under HTS 7304.29.61.30 due to its seamless construction, alloy steel composition, and specifications matching casing/tubing for drilling. Used to line wellbores and transport hydrocarbons.
2-3/8 Inch P110 Alloy Steel Drill Tubing
High-strength P110 grade seamless alloy steel tubing with 2-3/8 inch OD (60.3 mm) and wall thickness exceeding 9.5 mm, used in high-pressure oil/gas drilling. Meets HTS 7304.29.61.30 as seamless alloy steel tubing for drilling ops, not cast iron. Provides corrosion resistance and structural integrity in harsh subsurface environments.
2-7/8 Inch T95 Alloy Steel Casing Tubing
Seamless T95 alloy steel tubing (73 mm OD, wall >9.5 mm) for oilfield casing in drilling for oil/gas. HTS 7304.29.61.30 applies for its seamless alloy steel build, small OD, thick walls suited to withstand drilling pressures. Ideal for sour service environments with enhanced sulfide resistance.
3-1/2 Inch Q125 High-Strength Alloy Tubing
Q125 grade seamless alloy steel tubing (88.9 mm OD, wall thickness >9.5 mm) for extreme-depth oil/gas wells. Fits HTS 7304.29.61.30 for seamless, small-diameter, thick-walled drill tubing of alloy steel. Offers superior yield strength for high-pressure completions.
API 5CT C110 Sour Service Tubing
Seamless C110 alloy steel tubing (OD ≤114.3 mm, wall >9.5 mm) API 5CT certified for H2S sour service in gas wells. HTS 7304.29.61.30 due to alloy steel, seamless, drilling-specific design with thick walls. Prevents cracking in aggressive environments.
2-3/8 Inch 13Cr Alloy Steel Tubing
13% Chromium (13Cr) seamless alloy steel tubing, 2-3/8in OD, wall >9.5 mm for corrosive oil/gas environments. Classifies in HTS 7304.29.61.30 as other alloy steel seamless tubing for drilling. Enhanced for CO2 and mild sour service.
60.3mm x 12mm Alloy Steel Liner Tubing
Seamless alloy steel liner tubing (60.3 mm OD, 12 mm wall thickness) for oil/gas production liners. HTS 7304.29.61.30 for thick-walled, small OD seamless alloy drill tubing. Protects formations during hydraulic fracturing.
88.9mm Martensitic Alloy Drill Tubing
Martensitic alloy steel seamless tubing (88.9 mm OD, wall >9.5 mm) for directional drilling in oil/gas. Fits 7304.29.61.30 as specialized thick-walled alloy tubing. Heat-treated for high collapse resistance.