Having a wall thickness less than 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 exceeding 285.8 mm but not exceeding 406.4 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 7304.39.00.62
API 5L Grade B Seamless Steel Pipe 12-inch OD
A seamless steel tube of circular cross section made from nonalloy steel, with an outside diameter of 323.9 mm and wall thickness of 10 mm, suitable for oil and gas pipelines. It falls under HTS 7304.39.0062 due to its seamless construction, nonalloy steel material, circular profile exceeding 285.8 mm but not over 406.4 mm OD, and wall thickness under 12.7 mm. Commonly used in midstream energy infrastructure for transporting hydrocarbons.
ASTM A53 Grade B Seamless Steel Line Pipe 13-inch
Seamless carbon steel pipe, 330.2 mm OD, 9.5 mm wall, per ASTM A53 for structural and fluid conveyance in construction. Meets HTS 7304.39.0062 criteria: seamless, nonalloy steel, circular, 285.8-406.4 mm OD, wall <12.7 mm. Used in water transmission lines and piling.
Large Diameter Seamless Steel Casing Pipe 12.75-inch
Seamless nonalloy steel casing for oil well drilling, 323.85 mm OD, 10.3 mm wall, API 5CT compliant. Under HTS 7304.39.0062 for seamless circular tubes of iron/nonalloy steel, 285.8-406.4 mm OD, wall <12.7 mm. Protects wellbore in upstream oil production.
Seamless Pressure Piping Tube 16-inch OD
High-pressure seamless steel tube, 406.4 mm OD, 12.5 mm wall, ASTM A335 P5 equivalent but nonalloy for power plant steam lines. Classifies in 7304.39.0062: seamless, circular, nonalloy steel, exact upper OD limit, sub-12.7 mm wall. For utility boiler feedwater systems.
Seamless Steel Flowline Pipe 13.5-inch OD
Nonalloy seamless pipe for subsea flowlines, 342.9 mm OD, 10.8 mm wall thickness, sour service resistant. Fits 7304.39.0062: circular seamless tube of iron/nonalloy steel, 285.8-406.4 mm OD range, <12.7 mm wall. Used in offshore production manifolds.
Schedule 40 Seamless Carbon Steel Pipe 14-inch
Seamless nonalloy steel pipe with 355.6 mm OD, 11.1 mm wall thickness, conforming to ASTM A106 Grade B for high-temperature service in refineries. Classified in 7304.39.0062 for its circular cross section, OD between 285.8-406.4 mm, thin wall <12.7 mm, and seamless iron/nonalloy steel construction. Ideal for process piping in petrochemical plants.
Seamless Hydraulic Cylinder Tube 15-inch OD
Precision seamless nonalloy steel tube, 381 mm OD, 11.5 mm wall thickness, honed finish for hydraulic cylinder barrels in heavy machinery. Fits 7304.39.0062 as seamless iron/nonalloy steel pipe of circular section, OD 285.8-406.4 mm, thin wall. Essential for construction equipment cylinders.
Structural Seamless Steel Tube 14.5-inch Diameter
Seamless nonalloy steel hollow profile, 368.3 mm OD, 11 mm wall, for offshore platform legs and structural columns. HTS 7304.39.0062 applies to its circular cross section, seamless iron/steel build, specified OD range, thin wall. Corrosion-resistant coating optional.
Heavy Wall Seamless Steel Pipe 11.75-inch Alternative
Near-heavy wall seamless nonalloy pipe, 298.45 mm OD, 12.6 mm wall (just under limit), for mechanical tubing apps. 7304.39.0062 due to dimensions: >285.8 mm OD <=406.4 mm, wall <12.7 mm, seamless circular steel. For roller conveyor systems.
Seamless Ventilation Duct Tube 15.5-inch
Large seamless steel tube for industrial HVAC ducts, 393.7 mm OD, 9 mm wall, galvanized interior. Classed in 7304.39.0062 for nonalloy seamless circular profile, OD specs met, thin wall. High-volume air handling in factories.