Corrosion-Resistant Alloy Steel Pipe for Desalination Plants
Longitudinally welded duplex alloy steel pipe over 406.4 mm for seawater intake in desalination facilities. HTS 7305.31.60 for large-diameter welded alloy tubes with circular section. UNS S31803 grade for chloride resistance.
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Import Tips & Compliance
• PREN value documentation (>35 for duplex) proves alloy status
• Specify 'other, not seamless' clearly
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