Seamless Steel Gas Line Tubing
Thin-walled seamless nonalloy steel tubes (<4 mm wall) for natural gas distribution lines in industrial settings. Classified under HTS 7304.90.50.00 for seamless iron/nonalloy steel pipes.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If API 5L line pipe specification
Pipes for oil/gas transport classify as line pipe regardless of wall thickness.
If standard welded gas pipes
Welded versions vastly outnumber seamless for gas lines.
If plastic-coated for corrosion protection
Coated pipes may classify under plastics chapter if coating dominates.
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Import Tips & Compliance
• Certify compliance with ASTM A53 or equivalent standards for gas service
• Distinguish from line pipe (7304.19) by lacking API 5L certification
• Declare maximum pressure ratings to confirm not drill pipe or casing
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