Seamless ASTM A106 Grade B Pipe 9-inch OD 15mm WT
High-temperature seamless carbon steel pipe per ASTM A106, with 228.6 mm OD and 15 mm wall thickness, used in refineries and power plants. Classified under HTS 7304.39.0052 for its non-alloy steel composition, circular seamless profile, and specified OD/wall dimensions. Ideal for process piping handling steam or hydrocarbons.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If wall thickness 19 mm or more
Thicker walls exceeding 19 mm in the same OD range move to subheading 7304.39.0062.
If alloy steel composition
Pipes containing alloying elements over specified limits (e.g., >0.3% Cr) classify under alloy steel headings like 7304.59.
If imported as finished heat exchanger tube
If processed with fins or specific end fittings for heat exchangers, it may shift to Chapter 84 as machinery parts.
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Import Tips & Compliance
• Require NDT reports (ultrasonic or radiographic) as per ASTM A106; customs may inspect for seamless integrity
• Label with heat number, grade, and dimensions; missing markings can trigger FDA-equivalent scrutiny for industrial safety
• Avoid misdeclaration as drill pipe (7304.21) by providing non-drilling end-use affidavits
Related Products under HTS 7304.39.00.52
Seamless Refrigeration Pipe 9-inch OD 18.5mm WT
Heavy wall seamless pipe for industrial refrigeration systems, 228.6 mm OD, 18.5 mm thick. HTS 7304.39.0052 for non-alloy seamless circular profile. Ammonia-compatible construction.
Seamless Mining Slurry Pipe 11.5-inch OD 16mm WT
Abrasion-resistant seamless pipe for mining slurry transport, 292.1 mm OD, 16 mm wall. Classifies HTS 7304.39.0052 dimensionally. Hardness-tested for ore pulp handling.
Seamless Fire Main Pipe 7-inch OD 13.5mm WT
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Heavy Seamless Ductile Iron Replacement Pipe 10-inch 15mm WT
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Heavy Seamless Condenser Tube 8.25-inch OD 17.5mm WT
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Seamless API 5L Grade B Steel Pipe 8-inch OD 16mm WT
This seamless steel pipe of non-alloy steel has an outside diameter of 219.1 mm and a wall thickness of 16 mm, designed for oil and gas transmission lines. It falls under HTS 7304.39.0052 due to its circular cross-section, seamless construction, OD between 190.5-285.8 mm, and wall thickness of 12.7-19 mm. Commonly used in pipeline infrastructure for transporting hydrocarbons.