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Pipes & Tubes

Duplex & Super Duplex Pipes

Duplex 2205 and super duplex 2507 / S32760 pipes and tubes to ASTM A790 and A789.

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Duplex & Super Duplex Pipes products

About duplex & super duplex pipes

Duplex and super duplex stainless pipes combine high strength with excellent resistance to chloride pitting and stress corrosion cracking. Source UNS S31803, S32205, S32750, S32760 and S32950 pipes and tubes to ASTM A790 and A789 for offshore, desalination and chemical plants.

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FAQ

Duplex & Super Duplex Pipes questions

Both are 2205 duplex. S32205 has tighter nitrogen and molybdenum limits for better pitting resistance, and is often dual-certified with S31803.

For seawater and aggressive chloride service where 2205 is at its limit. Super duplex has a PREN above 40.

Yes, with matching filler metal and controlled heat input to keep the ferrite-austenite balance.

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