Pressure Vessel Seamless Pipe 16-inch OD 30 mm Wall
Extra heavy-walled seamless carbon steel pipe for reactor vessels, 406 mm OD and 30 mm thickness. Classified in HTS 7304.39.0072 for nonalloy seamless tubes in the 285.8-406.4 mm OD range with walls over 19 mm. Withstands extreme pressures in petrochemical processing.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If having OD >406.4 mm
Larger diameter pipes (over 16 inches) have dedicated subheadings beyond the 406.4 mm limit.
If manufactured to specific tolerances for cylindrical vessels
Pipes designed exclusively for pressure vessels may classify as tubes for vessels in 7307.
If for mechanical/automotive applications
Non-pressure, mechanical tubing uses different statistical suffixes even within same dimensions.
Not sure which classification is right?
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Import Tips & Compliance
• Include ASME Section II material certs and non-destructive testing (NDT) reports for pressure vessel compliance
• Specify if normalized/heat-treated; advanced processes don't change HTS but aid valuation
• Ship in protective racks; damage during transit can lead to rejection for high-pressure apps
Related Products under HTS 7304.39.00.72
API 5L Grade B Seamless Steel Pipe 16-inch OD 1-inch Wall
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ASTM A106 Grade B Seamless Carbon Steel Pipe 14-inch OD 3/4-inch Wall
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