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UNS S31254 Super Austenitic Stainless SteelUNS S31254 / 1.4547 /F44

Super Austenitic Stainless Steel

Material to UNS S31254 (and the other specifications listed in our technical datasheet) is described as a 6% Mo super austenitic stainless steel.

The steel combines moderate mechanical strength (typically over 300 MPa yield strength) and high ductility with excellent corrosion resistance in seawater and a variety of industrial environments. Typically the alloy has a PREn (Pitting Resistance Equivalent) of 42-44 which ensures that the resistance to pitting corrosion is high. In addition, the steel provides good resistance to crevice corrosion.

Ambient and sub-zero temperature notch ductility is very good. These attributes mean that this high molybdenum stainless steel can be used successfully as an alternative to 300 series austenitic stainless steels (such as type 316) in applications where higher mechanical strength and/or enhanced resistance to pitting and crevice corrosion is required.

Comparisons

This alloy possesses a lower yield strength than that of duplex stainless steel (and much lower than that of super duplex steel) and pitting resistance which is comparable to super duplex stainless steel (such as UNS S32760 / S32750).

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 S31254 Super Austenitic Stainless Steel Datasheet

Typical Applications:

  • Pumps
  • Valves
  • Chokes
  • Pipework, flanges & manifolds
  • Oil & Gas industry components


We offer UNS S31254 Super Austenitic 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.

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