Heavy Wall Seamless Line Pipe 16 Inch OD 25mm Wall Grade B
Extra heavy-walled seamless nonalloy steel pipe (16-inch/406.4 mm OD, 25 mm wall) for deepwater oil/gas gathering lines. Complies with API 5L PSL1 standards for corrosive environments. Classified in 7304.19.1060 for thick-walled line pipes in the 215.9-406.4 mm OD range.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If outside diameter over 406.4 mm
Larger diameter line pipes move to 7304.39 subheading for statistical tracking of bigger infrastructure pipes.
If cold-drawn precision sizing
Precision tubes with tight tolerances classify under 7304.31 as cold-formed, distinct from hot-finished line pipe.
If parts of drilling rigs
If imported as rig components, Chapter 84 applies for oilfield machinery parts over raw tubes.
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Import Tips & Compliance
• Certify exact dimensions with third-party inspection (e.g
• SGS) to confirm 7304.19.1060 vs larger OD 7304.39
• Include coating specs if epoxy-lined; uncoated standard, but linings may require additional chemical declarations
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