Having a wall thickness of 12.7 mm or more
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: > Casing: > Of other alloy steel: > Threaded or coupled > Having an outside diameter less than 215.9 mm: > Having a wall thickness of 12.7 mm or more
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 7304.29.31.20
13-3/8 inch 68 lb/ft L-80 Type 13Cr Casing
Seamless alloy steel oil well casing pipe with 13-3/8 inch outside diameter, 68 lb/ft weight, L-80 grade with 13% chromium content for corrosion resistance in sour gas environments. Features API STC threaded couplings and wall thickness exceeding 12.7 mm, classified under HTS 7304.29.31.20 for heavy-duty drilling applications in oil and gas wells.
4-1/2 inch 14.6 lb/ft P110 Casing
Heavy wall seamless P110 grade alloy steel casing for high-pressure oil well applications, 4-1/2 inch OD, 14.6 lb/ft, with wall thickness over 12.7 mm and premium BTC threaded ends. Designed for deep drilling in harsh environments, this product fits HTS 7304.29.31.20 due to its coupled, thick-walled construction under 215.9 mm OD.
7 inch 32 lb/ft T95 Casing
Seamless T95 alloy steel casing pipe, 7-inch OD, 32 lb/ft weight class, wall thickness ≥12.7 mm, with integral EUE couplings for gas well drilling. High collapse resistance for deviated wells, precisely matching HTS 7304.29.31.20 for small OD, thick-walled, threaded alloy steel oil/gas casing.
9-5/8 inch 47 lb/ft Q125 Casing
Ultra-high strength Q125 grade seamless alloy steel casing, 9-5/8 inch OD, 47 lb/ft, featuring 15+ mm wall thickness and VAM TOP threaded connections for extreme service oil wells. Classified in HTS 7304.29.31.20 for its heavy wall, coupled design under 215.9 mm OD used in oil and gas drilling.
5-1/2 inch 20 lb/ft C110 Casing
C110 grade seamless alloy steel production casing for offshore wells, 5-1/2 inch OD, 20 lb/ft nominal weight with 13.2 mm wall thickness, coupled with NEW VAM connections. Meets HTS 7304.29.31.20 specifications for thick-walled, threaded small-diameter alloy steel drill casing.
8-5/8 inch 40 lb/ft L80-13Cr Casing
Corrosion-resistant L80-13Cr seamless alloy casing, 8-5/8 inch OD, 40 lb/ft, 14.5 mm wall thickness with BTC couplings for CO2 injection wells. HTS 7304.29.31.20 applies to this heavy-duty, threaded alloy steel pipe under 215.9 mm OD for oil/gas drilling operations.
3-1/2 inch 13.7 lb/ft P110 Surface Casing
P110 high-strength seamless alloy surface casing, 3-1/2 inch OD, 13.7 lb/ft weight, 13+ mm wall with surface couplings for conductor applications. Fits HTS 7304.29.31.20 criteria for small OD, thick-walled, coupled alloy steel pipes used in oil well drilling.
6-5/8 inch 27 lb/ft C95 Intermediate Casing
C95 grade seamless alloy intermediate casing pipe, 6-5/8 inch OD, 27 lb/ft, heavy 14 mm wall thickness with integral premium threads for directional drilling. Precisely classified under HTS 7304.29.31.20 for threaded, thick-walled alloy steel oil/gas casing under 215.9 mm OD.