Seamless Carbon Steel Boiler Tube OD 25mm
A seamless tube made from non-alloy steel with an outside diameter of 25mm, precision-engineered for use in high-pressure steam boilers. It falls under HTS 7304.39.0002 due to its circular cross-section, seamless construction, and suitability for boilers where pressure resistance is critical. The small diameter ensures efficient heat transfer in compact boiler designs.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If made of alloy steel
Alloy steel seamless tubes shift to 7304.51 regardless of diameter or end use due to material composition.
If welded instead of seamless
Welded pipes suitable for boilers fall under Chapter 73 heading 7306, not seamless 7304.
If imported as parts of heat exchangers
If specifically shaped and imported as a component of a heat exchanger unit, it may classify under machinery parts in 8419.
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Import Tips & Compliance
• Verify seamless construction via mill test certificates to avoid misclassification as welded pipes under 7306
• Ensure documentation specifies boiler/superheater use and exact OD measurement under 38.1mm for statistical reporting
Related Products under HTS 7304.39.00.02
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Carbon Steel Heat Exchanger U-Tube OD 22mm
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Small Diameter Boiler Economizer Tube OD 16mm
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