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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If having wall thickness of 12.7 mm or more
Thicker-walled versions of the same OD range classify in adjacent 7304.39.0078, based solely on wall dimension.
If electric resistance welded (ERW)
ERW manufacturing process reclassifies to 7306.19 for other welded circular steel pipes of similar specs.
If for use as structural steel poles
If designed primarily as finished structural poles rather than generic tubes, it may fall under other steel articles in 7326.
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Import Tips & Compliance
• Provide ASTM A53 certification; customs often requires proof of seamless vs. welded to uphold 7304 classification
• Avoid common error of declaring wall thickness over 12.7 mm—measure at thinnest point for accurate subheading
• For structural use, note end-use in entry summary to qualify for potential duty reductions under trade agreements
Related Products 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.
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.