SUPER AUSTENITIC UNS S31254 /F44 - 1.4547 - X1CrNiMoCuN20.18.7 - 254SMO

Similar to:

6Mo
254SMO®
6MOLY
URANUS B25®

Supplied as:

Rolled - forged round bar, solution annealed. Supplied in commercial length or cut to size.
Certified according to EN 10204 3.1.
Norsok up to Ø 400 mm. Api 6a  up to Ø 350 mm
Only Western Europe origin material.

Stock

∅12,7mm ∅45mm ∅80mm ∅140mm ∅212mm ∅350mm
∅16mm ∅50mm ∅90mm ∅150mm ∅222mm ∅400mm
∅20mm ∅55mm ∅100mm ∅160mm ∅235mm  
∅25mm ∅60mm ∅110mm ∅170mm ∅250mm  
∅30mm ∅65mm ∅115mm ∅180mm ∅275mm  
∅35mm ∅70mm ∅120mm ∅190mm ∅302mm  
∅40mm ∅75mm ∅130mm ∅203,2mm ∅325mm  

 Download fully detailed stock list:

 https://www.specialsteelstock.com/it/area-download/scarica-stock-list.html

 

  • Properties:

    Austenitic chromium-nickel-molybdenium stainless steel with excellent resistance to stress corrosion cracking, pitting and crevice corrosion.
    Resistant to iintergranular corrosion in the temperature range up to 400°C.
    For optimum resistance, surfaces should be pickled, scalefree heat treated o machined.
  • Applications:

    For applications involving highly corrosive environments due to the presence of chemically aggressive media, e.g. for equipment and plants which are cooled by seawater and parts for offshore plants. In the chemical industry where resistance to the attack of pure acids as well as acids containing chloride ions (sulphuric acid in in particular), of organic acids and mixed acids is required in the higher pressure and temperature ranges. The enhances resistance to crevice corrosion permits use also for applications where incrustation must be expected, and / or where the formation of gaps cannot be avoided by design precautions.

     

  • Chemical compositions (average):

    Element C Si Mn Cr Mo Ni N
      0,020 0,18 0,65 20,30 6,30 17,80 0,20
  • Mechanical & physical properties:

    Pren 42.2-47.6
    Yield strenght 0,2% (N/mm2) Min. 300
    Ultimate tensile strenght (N/mm2) Min. 650
    Reduction of area Min. 50
    Elongation % Min. 35
    Hardness (HBN) Max. 210
    Density 8 kg /dm³
    Thermic conductivity 13,5 (W.m.K.)
    Specific heat 500 Joule (kg.K)
    Electric resistance 0,85 Ω mm²/m
    Modulo di elasticità 200 x 10³ N/mm²
    Magnetic characteristics Non magnetic
    Heat treatment Solubilization 1150° - 1200° C/ H20

Trademarks notice:

some names are registered trademarks of specific manufacturers.
SpecialSteelStock C.S.C. Spa is not affiliated with any manufacturers. Names are listed solely for reference to help identify products consistent with listed specifications.

 



The present datasheet is intended to give a survey of the characteristics of this material.  SpecialSteelStock C.S.C. spa is not liable in case of inaccuracy.

Stainless steel, Acier inoxydable, Rostfreier Stahl, Aco Inoxidável, Acero Inoxidables, Roestvrij staal, Paslanmaz çelik, Нержавеющих сталей, ανοξείδωτο χάλυβα, Rustfritt stål, Rostfritt stål, Rustfrit stål, Nerez, Rozsdamentes acél, Stali nierdzewnej, Ruostumaton TerÄs, الفولاذ المقاوم للصدأ

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