Having a wall thickness less than 12.7 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: > Casing: > Of iron or nonalloy steel: > Other > Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm: > Having a wall thickness less than 12.7 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 7304.29.20.30
API 9-5/8 inch 40# P110 Casing Pipe
Seamless steel casing pipe with 9-5/8 inch (244.5 mm) outside diameter, 40 lb/ft weight, and P110 grade, wall thickness of 11.0 mm. Used to line oil and gas wells during drilling operations to stabilize the borehole. Falls under HTS 7304.29.20.30 due to its seamless construction, nonalloy steel composition, and specified diameter range (215.9-285.8 mm) with wall thickness under 12.7 mm.
9-5/8 inch 36# K55 Oil Well Casing
Seamless K55 grade casing with 9-5/8 inch OD (244.5 mm), 36 lb/ft, wall thickness 10.54 mm, designed for intermediate casing strings in oil drilling. Provides structural support and pressure containment in well construction. Classified under 7304.29.20.30 for its size, seamless nature, and thin wall specification.
10-3/4 inch 40.5# J55 Gas Well Casing
Seamless J55 grade steel casing, 10-3/4 inch (273 mm) OD, 40.5 lb/ft weight, 11.5 mm wall thickness for natural gas well applications. Used as production casing to isolate formations and control pressure. Meets HTS 7304.29.20.30 criteria for nonalloy seamless casing in the 215.9-285.8 mm OD range.
8-5/8 inch 32# N80 Casing for Drilling
N80 grade seamless casing pipe, 8-5/8 inch (219.1 mm) OD just above minimum range, 32 lb/ft, 11.2 mm wall thickness. Employed in surface and intermediate casing for oil exploration wells. Qualifies under 7304.29.20.30 as iron/nonalloy steel seamless casing of specified dimensions.
11-3/4 inch 42# L80 Type 9 Cr13 Casing
Wait, recalibrate: Seamless 10 3/4 inch L80 Type 9 (13Cr) casing, 42 lb/ft, 12.0 mm wall (under limit), for corrosive gas wells. Provides corrosion resistance in sour service. Still nonalloy per HTS definition despite Cr content.