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UNS S32760 Super Duplex Stainless SteelUNS S32760 / 1.4501 / F55

Super Duplex Stainless Steel

Material to UNS S32760 is described as a super duplex stainless steel with a microstructure of 50:50 austenite and ferrite.

The steel combines high mechanical strength (typically up to 600 MPa yield strength) and good ductility with outstanding corrosion resistance to marine environments and a wide, diverse range of oil & gas production environments. The alloy is supplied with a PREN(Pitting Resistance Equivalent) at >= 40.0 which guarantees high resistance to pitting corrosion. In addition, the steel offers high resistance to crevice corrosion and stress corrosion cracking.

Ambient and sub-zero (down to minus 50°C) notch ductility is good. These attributes mean that this super duplex steel can be used successfully as an alternative to 300 series stainless steel (such as type 316), standard 22% Cr duplex steel and precipitation hardening stainless steels. Where appropriate the alloy can be considered in lieu of more costly Grade 5 titanium or nickel based alloys.

Machinability & Welding

The machining and welding of this grade of super duplex stainless steel presents no particular problems. Guidance notes are available upon request.

Technical Assistance

Our knowledgeable staff and resident metallurgists will be pleased to assist you further on any technical topic. Smiths Metal Centres Limited also boasts an in-house UKAS Accredited Testing Laboratory which is unique within the multi-metal and plastic stockholding sector. We believe this underlines our total commitment to quality and our ethos of being the complete service provider.

Download UNS S32760 Super Duplex Stainless Steel Datasheet

Typical Applications:

  • Pumps, valves, chokes
  • Pipework/flanges
  • Connectors
  • Manifolds
  • Oil & Gas components

We offer UNS S32760 Super Duplex Stainless Steel in bar, forgings, sheet, plate, pipe, tube, closed die forgings, flanges and welding consumables.


We offer processing services throughout the Smiths Group - with more than 30 band saws and a fully automated magazine feed CNC rod blanking line, we can process your material to your exact requirements.

Pick a Product

To find out more about Smiths Metal Centres extensive range of high quality duplex and super duplex stainless steel products, click on one of our products on the side menu of this web page.

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