Large Diameter Superheater Tube SA-213 T11
Seamless tube from non-alloy steel for superheaters in industrial boilers, with OD exceeding 285.8 mm. Classified under 7304.39.0008 for its circular cross-section, seamless iron/non-alloy steel makeup, and explicit suitability for superheaters. Ideal for high-temperature steam applications in energy production.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If OD 285.8 mm or less but still >114.3 mm
Diameter threshold splits statistical reporting within the 'other' suitable for boilers category.
If imported as assembled heat exchanger part
If pre-fitted into a heat exchanger unit, it classifies as a part of machinery under Chapter 84 rather than raw tube.
If not specifically certified for boiler use
Lack of boiler/superheater suitability documentation defaults to general seamless tube classification.
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Import Tips & Compliance
• Provide ASME SA-213 certification showing boiler end-use; inspectors often reject without material traceability
• Conduct hydrostatic test records pre-shipment to demonstrate pressure integrity, avoiding detention
• Note exact wall thickness in invoices, as thin walls might be scrutinized for heat exchanger vs general use
Related Products under HTS 7304.39.00.08
Refinery Cracking Furnace Tube
Large seamless non-alloy tube for ethylene cracking furnaces, OD >285.8 mm. HTS 7304.39.0008 via refining furnace provision.
Boiler Economizer Seamless Tube
Seamless tube >285.8 mm for boiler economizers (feedwater heaters). Matches 7304.39.0008 specs fully.
Steel Superheater Coils Pipe
Straight seamless non-alloy pipe >285.8 mm OD for superheater coils. 7304.39.0008 classification.
Seamless Boiler Tube ASTM A106 Grade B
This seamless carbon steel tube is designed for high-pressure boiler applications, featuring an outside diameter over 285.8 mm and circular cross-section. It falls under HTS 7304.39.0008 due to its seamless construction from non-alloy steel, suitability for boilers, and large diameter exceeding 11.25 inches. Commonly used in power plants for steam generation.
Heat Exchanger Seamless Pipe API 5L X52
High-strength seamless non-alloy steel pipe with OD over 285.8 mm, engineered for heat exchangers in refining processes. Meets HTS 7304.39.0008 criteria: seamless, circular, iron/non-alloy steel, and suitable for heat exchangers/condensers. Used in petrochemical plants for efficient heat transfer.
Condenser Tube for Feedwater Heaters
Seamless carbon steel tube exceeding 285.8 mm OD, optimized for condensers and feedwater heaters in power generation. Fits 7304.39.0008 as a large-diameter, circular cross-section seamless product of non-alloy steel designated for those specific thermal applications.