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Chalybes Super Austenitici 254SMO • UNS S31254 • 1.4547 Imago Praecipua
  • Chalybes Super Austenitici 254SMO • UNS S31254 • 1.4547
  • Chalybes Super Austenitici 254SMO • UNS S31254 • 1.4547
  • Chalybes Super Austenitici 254SMO • UNS S31254 • 1.4547

Chalybes Super Austenitici 254SMO • UNS S31254 • 1.4547

Descriptio Brevis:

Tubi Chalybis Inoxidabilis UNS S31254. UNS S31254 est chalybs inoxidabilis superausteniticus cum alto gradu molybdeni et nitrogenii, praebens magnam resistentiam corrosionis per foveas et rimas, necnon magnam firmitatem comparatus cum chalybibus inoxidabilibus austeniticis conventionalibus sicut 316L. UNS S31254 est gradus austeniticus in quo additiones chromii, molybdeni et nitrogenii magnam resistentiam corrosionis per foveas in aqua marina dant. Haec mixtura medium Numerum Aequivalentem Resistentiae Fovearum (‚PREN' = Cr+3.3Mo+16N) 43.8 habet. Experimenta indicant magnam resistentiam impetui corrosionis per rimas in aqua marina et fissuris corrosionis sub tensione in chlorido natrii calido concentrato. Comparatus cum chalybe CrNiMo 17 12 2.5, ostendit resistentiam corrosionis superiorem in multis acidis in similibus concentrationibus et eius firmitas flexionis est circiter 50% maior. Bona sudabilitas utens consumptibilibus Ni-Cr-Mo. Recoctio refrigerans et brevia tempora intra intervallum 600-1000°C impediunt possibilem progressionem noxiae phasis sigma, quae fragilitatem reddere et resistentiam corrosionis minuere potest.


  • Gradus Tubi:254SMO • UNS S31254 • 1.4547
  • Typus Tubi:Conglutinata, Conglutinata et Tracta, Sine Suturitate
  • Forma Tubi:Recta, Flexus U
  • Superficies Finis:Splendide recoctum, recoctum et conditum, politum
  • Normae (ASME/ASTM):A249, A213, A269, A312
  • Normae (EN):EN 10217-7, EN 10296-2, EN 10216-5, EN 10297-2

    • Detalia Producti

    Etiquettae Productarum

    Tubi Chalybis Inoxidabilis S31254, Tubi Chalybis Inoxidabilis 1.4547

    Compositio Chemica (in % per massam)
    Gradus C Si Mn P S Cr Ni Mo Cu N Alii
      Maximus Maximus Maximus Maximus Maximus            
    S31254 0.020 0.80 1.00 0.030 0.010 19.5 – 20.5 17.5 – 18.5 6.0 – 6.5 0.50 – 1.00 0.18 – 0.25  
    1.4547 0.020 0.70 1.00 0.030 0.010 19.5 – 20.5 17.5 – 18.5 6.0 – 7.0   0.18 – 0.25  

     

    Proprietates Mechanicae et Tractatio Caloris 
    Gradus Rp 0.2MPA RP 1.0MPA RmMPA A (%) Duritia(HRB) Tractatio Caloris
      Min. Min. Min. – Max. Min. Maximus  
    S31254 CCCX   DCCLXXV 35 centum Solutione recoctum
    1.4547 trecenti 340 650 – 850 35   Solutione recoctum

     

    Magnitudo Tubi Communiter Adhibita
    OD Crassitudo (mm)
      0.50 0.70 0.80 0.89 1.00 1.20 1.24 1.50 1.65 2.00 2.11 2.50 2.77 3.05
    sex.00 x x x x x x x x            
    6.35 x x x x x x x X x          
    7.00 x x x x x x x x            
    7.50 x x x x x x x x            
    VIII.00 x x x x x x x x            
    Hora nona x x x x x x x x            
    9.53 x x x x x x x x x          
    10.00 X x x x x x x x            
    Hora undecima x x x x x x x x            
    Hora duodecima x x x x x x x x   x        
    12.70 x x x x x x x x x x x      
    hora tredecim x x x x x x x x            
    hora quarta decima x x x x x x x x            
    15.00 x x x x x x x x            
    15.88 x x x x x x X x x x x      
    hora sexta decima x x x x x x X x x x        
    17.15 x x x x x x x x x x x      
    hora XVIII x x x x x x x x x X        
    hora 19.00 x x x x x x x x x X        
    19.05 x x X X x x x x x x x x x  
    XX.00 x x x x X x X X X x x X x  
    21.34 x x x x x x x x x x X x X  
    Hora XXII x x x x x x x x x x x X X  
    22.23 x x x x x x x x x x X x x  
    23.00 x x x x x x x x x x X X x  
    24.00 x x x x x x x X x x X X x  
    25.00 x x x X x X X X x x X X X x
    25.40 x x x x x x x x x x X x X x
    26.00 x x x x x x x x x x x x x x
    26.67 x x x x x x x x x x x x x x
    26.90 x x x x x x x x x x x x x x
    XXVIII.00 x x x x x x x x x x x x x x
    28.58 x x x x x x x x x x x x x x
    30.00 x x x x x x x x x x x x x x
    31.75 x x x x x x x x x x x x x x
    32.00 x x x x x x x x x x x x x x
    33.40 x x x x x x x x x x x x x x
    35.00 x x x x x x x x x x x x x x
    36.00 x x x x x x x x x x x x x x
    38.10 x x x x x x x x x x x x x x
    42.00         x x x x x x x X x x
    44.50           x x x x x x x x x
    48.26               x x x x x x x
    50.80       x x x x x x x x x x x
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