Having a wall thickness exceeding 12.7 mm
Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: > Other, of circular cross section, of iron or nonalloy steel: > Other > Other: > Other: > Having an outside diameter of 38.1 mm or more but not exceeding 114.3 mm: > Having a wall thickness exceeding 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 7304.39.00.32
API 5L Grade B Seamless Steel Pipe 4-inch OD 0.5-inch Wall
A seamless carbon steel pipe with 101.6 mm OD and 12.8 mm wall thickness, made from non-alloy steel for oil and gas transmission lines. It falls under HTS 7304.39.0032 due to its circular cross-section, OD between 38.1-114.3 mm, and wall thickness over 12.7 mm. Commonly used in high-pressure pipelines requiring structural integrity.
Schedule 80 Seamless Carbon Steel Pipe 3-inch OD
Heavy-duty seamless pipe with 88.9 mm OD and 14.3 mm wall thickness, Schedule 80 rating for industrial pressure applications. Classified under HTS 7304.39.0032 for its non-alloy steel construction, circular profile, and thick walls exceeding 12.7 mm. Used in refineries, chemical plants, and structural supports.
ASTM A106 Grade B Seamless Pipe 4.5-inch OD 0.531-inch Wall
High-temperature service seamless pipe, 114.3 mm OD with 13.5 mm wall, non-alloy carbon steel per ASTM A106 specs. Fits HTS 7304.39.0032 precisely due to circular cross-section, OD range 38.1-114.3 mm, and wall over 12.7 mm. Essential for process piping in power plants and petrochemical facilities.
Heavy Wall Seamless Steel Casing 2.375-inch OD 0.545-inch Wall
Seamless non-alloy steel casing pipe for oil well applications, 60.3 mm OD and 13.8 mm wall thickness. Meets HTS 7304.39.0032 criteria for circular seamless tubes of iron/nonalloy steel with specified OD and thick walls. Provides structural support in drilling operations.
Schedule 160 Carbon Steel Seamless Pipe 3.5-inch OD
Extra heavy wall seamless pipe, 88.9 mm OD with 17.5 mm wall thickness for extreme pressure service. Classifies in HTS 7304.39.0032 as non-alloy steel circular tube exceeding dimension thresholds. Used in hydraulic cylinders and high-pressure manifolds.
ASME B36.10 Thick Wall Seamless Line Pipe 114.3 mm OD
Standard dimension seamless pipe at upper OD limit of 114.3 mm with 15 mm wall, non-alloy steel per ASME specs. Perfect match for HTS 7304.39.0032 thick wall circular tubes. Applied in offshore platform risers and flowlines.