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Chalybes Super Austenitici 904L • UNS N08904 • 1.4539 Imago Praecipua
  • Chalybes Super Austenitici 904L • UNS N08904 • 1.4539
  • Chalybes Super Austenitici 904L • UNS N08904 • 1.4539
  • Chalybes Super Austenitici 904L • UNS N08904 • 1.4539

Chalybes Super Austenitici 904L • UNS N08904 • 1.4539

Descriptio Brevis:

Tubi Chalybis Inoxidabilis 904L. UNS N08904, vulgo 904L appellatus, est chalybs inoxidabilis austeniticus, humilis carbonis contentus, et altae mixturae, quod late adhibetur in applicationibus ubi proprietates corrosionis AISI 316L et AISI 317L non sufficiunt. Hic chalybs austeniticus altae mixturae valde resistit impetui ab acido sulphurico diluto, acido phosphorico et acido acetico. Resistit corrosionis sub tensione (pitting) in solutionibus chloridi neutralibus. Resistentia eius corrosionis sub tensione (stress) in quibusdam chloridis calidis multo superior est resistentia austenitarum niccoli inferiorum. Hic chalybs bonam formabilitatem et sudabilitatem habet. Haec materia in omnibus normis communibus, ut ASTM et EN, praesens est, sed cum quibusdam differentiis. Tensiones designatae usque ad 370°C in ASME II includuntur.


  • Gradus Tubi:UNS N08904, 1.4539
  • Typus Tubi:Conglutinata, Conglutinata et Tracta, Sine Suturitate
  • Forma Tubi:Recta, U-forma curvata, spiralia, ad longitudinem secta frusta
  • Superficies Finis:Splendide recoctum, recoctum et conditum, politum
  • Normae (ASME/ASTM):A249, A213, A269, A312, B673
  • Normae (EN):EN 10217-7, EN 10296-2, EN 10216-5, EN 10297-2

    • Detalia Producti

    Etiquettae Productarum

    Tubi Chalybis Inoxidabilis 904L, Tubi Chalybis Inoxidabilis 1.4539

    Compositio Chemica (in % per massam)
    Gradus C Si Mn P S Cr Ni Mo Cu N Alii
      Maximus Maximus Maximus Maximus Maximus            
    904L 0.020 1.00 2.00 0.040 0.030 19.0 – 23.0 23.0 – 28.0 4.0 – 5.0 1.00 – 2.0 0.10  
    1.4539 0.020 0.70 2.00 0.030 0.010 19.0 – 21.0 24.0 – 26.0 4.0 – 5.0 1.2 – 2.0 0.15  

     

    Proprietates Mechanicae et Tractatio Caloris 
    Gradus Rp 0.2MPA RP 1.0MPA RmMPA A (%) Duritia(HRB) Tractatio Caloris
      Min. Min. Min. – Max. Min. Maximus  
    904L 215   490 35 90 Solutione recoctum
    1.4539 220 250 520 – 720 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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