Super Duplex 2507 Welded Tube 300 mm OD
Super duplex 2507 (S32750) stainless welded tube, 300 mm OD, 5 mm wall for extreme corrosion environments like desalination. HTS 7306.40.50.90 for stainless welded circular tubes, other sizes. Premium grade for harsh conditions.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If considered stainless bars/tubes not per Chapter 73
Certain stainless hollow bars may classify in Chapter 72 if not true 'pipes'.
If seamless cold-finished
Cold-finished seamless stainless in 7304.41 differs from hot-finished welded.
If tubular valves or regulators
If incorporating valve functions, classifies as machinery appliances.
Not sure which classification is right?
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Import Tips & Compliance
• Super duplex requires PREN >40 certification (Pitting Resistance Equivalent Number)
• NDT reports (radiography) essential for weld quality verification
• Small lots may face higher scrutiny for commercial vs industrial use
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