6Mo (254SMO)

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Super duplex stainless steel

Description

Super Duplex 31254 stainless steel is a high-alloy austenitic-ferritic stainless steel designed for extreme corrosion resistance, particularly in highly aggressive chloride, acid, and oxidizing environments. Unlike typical super duplex steels, 31254 is lean on ferrite, giving it superior corrosion resistance, while retaining high strength.

6mo-254smo

Product Forms

LoneStar Manufacture

Studbolts

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Studding

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Hexagon Headed Bolting

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Nuts (hex, round, 12 point, specials)

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Socket Headed Bolting

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Double Ended and Waisted Studs

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Washers

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Associated OEM Parts

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Turned & milled machined components

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Precision engineered components

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Thread types

LoneStar Manufacture

Metric Coarse

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Metric Fine

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Imperial UNC

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Imperial 8UN

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Imperial UNF

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ACME

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S31254

Chromium (Cr)

19.5-20.5%

Nickel (Ni)

17.5-18.5%

Molybdenum (Mo)

6-6.5%

Copper (Cu)

0.5-1%

Nitrogen (N)

0.18-0.25%

Other elements: Iron (Fe) balance, with small amounts of Carbon (C), Silicon (Si), Manganese (Mn), Phosphorus (P), and Sulfur (S)

Tensile Strength

650-850MPa (94-123 KSI)

Yield Strength 0.2% offset

300MPa (44 KSI) min

Elongation

35%

Reduction of Area

45%

Hardness

260 HB

Designation

Grade

–

6Mo

ASTM

A182 F44

UNS

S31254

Werkstoff number

1.4547

Alloy

254SMO

Typical applications

Subsea piping & fasteners
Valves
Risers
Reactors
Pressure vessels
Desalination plants
Pumps
Pulp & paper

Disclaimer

All information is for illustrutive purposes only. LoneStar Group accepts no responsibility for the accuracy of data contained within or the use of any of the data by other parties.Properties do vary with the size and condition of the material.

Contact our electroplating experts to discuss your requirements.

We look forward to collaborating with you.