Stainless Steel Seamless Marine Grade Pipe 6-inch
Seamless marine-grade stainless pipe, 6-inch NPS for shipboard seawater systems with enhanced pitting resistance. Classified HTS 7304.49.0060 as other stainless seamless circular pipe for marine structural use. Large diameter excludes wire note.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If vessels <20m incorporating the pipe
Complete marine vessels including piping classify under Chapter 89.
If welded marine line pipe
Welded versions for marine conveyance use 7305 heading.
If sea water valve body components
Pipe sections machined as valve bodies go to Chapter 84 valves.
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Import Tips & Compliance
• ASTM G48 PREN >40 certification for seawater pitting resistance
• ABS type approval docs for marine structural classification
• Galvanic corrosion isolation specs for mixed metal ship systems
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