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ASTM A182 F44 Duplex 254SMO S31254 Flange

  • Material:Duplex
  • Production:slip on/WN /SW/Threaded/Blind/Lapped joint/Long WN flange
  • Product standards:ASME B16.5
  • Min.Order Quantity:1 Piece/Pieces

UNS S31254 /254SMO/F44/1.4547

 254SMO is a super Austenitic Stainless Steel. It is designed with a combination of impact toughness resistance to chloride stress corrosion cracking, and pitting and crevice corrosion with strength that is twice that of the stainless steel 300 series.

The following sections will discuss in detail about Stainless Steel Grade 254SMO.

 Chemical Composition, %

Ni

Fe

Cr

Cu

Mo

N

17.5~18.5

Balance

19.5~20.5

0.5~1.0

6.0~6.5

0.18~0.22

C

Mn

P

S

Si

0.002max

1.0max

0.030max

0.010max

0.80max

 Mechanical Properties 

Material Grade

Yield Strength,

Min(Mpa)

Tensile Strength, Min(Mpa)

Elongation,Min( %)

254SMO

300

650~820

28

 ASTM  SPECIFICATION

Pipe, 

SMLS& Welded

Tube ,

SMLS&Welded

Sheet/Plate

Bar /Rod

Forging /Flange

BW Fittings

ASTM A312

ASTM A269

ASTM A240

ASTM A276/A479

ASTM A182

ASTM A403

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