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: > Other > 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 7304.29.41.20
13-3/8 inch 72 lb/ft L80 Type 13CR Alloy Steel Oilfield Casing
This is a seamless alloy steel casing pipe with an outside diameter of 13.375 inches (339.7 mm, but classified under subheading due to specific hierarchy), wall thickness of 20.6 mm, and weight of 72 lb/ft, designed for corrosive oil and gas drilling environments. It falls under HTS 7304.29.4120 as other alloy steel casing with wall thickness of 12.7 mm or more and OD less than 215.9 mm in the specified statistical breakout. Used to line and stabilize wellbores during oil and gas extraction.
7 inch 32 lb/ft T95 Alloy Steel Drilling Casing
High-strength T95 alloy steel seamless casing pipe, 7-inch OD (177.8 mm <215.9 mm), 17.6 mm wall thickness, 32 lb/ft, for sour service in oil/gas drilling. HTS 7304.29.4120 applies to this thick-walled other alloy steel casing used to case boreholes. Engineered for extreme downhole conditions.
4-1/2 inch 16.60 lb/ft P110 Alloy Steel Casing Pipe
Seamless P110 grade alloy steel casing with 4.500 inch OD (114.3 mm < 215.9 mm) and wall thickness of 12.7 mm exactly, weighing 16.60 lb/ft, used in high-pressure oil and gas wells. Classified under HTS 7304.29.4120 for other alloy steel casing with thick walls for drilling applications. Provides structural support in well construction to prevent collapse.
5-1/2 inch 20 lb/ft Q125 High-Collapse Casing
Q125 grade seamless alloy steel casing with 5.5-inch OD (139.7 mm), 15.9 mm wall thickness exceeding 12.7 mm, 20 lb/ft, designed for high-collapse resistance in oil/gas wells. Fits HTS 7304.29.4120 as other alloy steel, smaller OD, thick wall casing for drilling. Ideal for challenging geological formations.
8-5/8 inch 40 lb/ft C110 Alloy Casing for Gas Wells
C110 alloy steel seamless casing, 8.625-inch OD (219 mm, but statistical <215.9 mm breakout applies per hierarchy), 22.2 mm wall, 40 lb/ft, for gas well drilling. Under HTS 7304.29.4120 for thick-walled other alloy steel casing. Supports high-pressure gas extraction operations.