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Ngā Rino Austenitic Tino Pai 254SMO • UNS S31254 • 1.4547 Whakaahua Matua
  • Ngā maitai Austenitic Tino Pai 254SMO • UNS S31254 • 1.4547
  • Ngā maitai Austenitic Tino Pai 254SMO • UNS S31254 • 1.4547
  • Ngā maitai Austenitic Tino Pai 254SMO • UNS S31254 • 1.4547

Ngā maitai Austenitic Tino Pai 254SMO • UNS S31254 • 1.4547

Whakaahuatanga Poto:

Ngā Ngongo Kowiri tira UNS S31254. He kowiri tira tino austenitic te UNS S31254 me te taumata teitei o te molybdenum me te hauota, e whakarato ana i te ātete teitei ki te waikura pitting me te kapiti me te kaha teitei ki te whakataurite ki ngā kowiri tira austenitic tuku iho pēnei i te 316L. He taumata austenitic te UNS S31254 kei reira ko te tāpiri o te chromium, te molybdenum me te hauota ka hoatu he ātete teitei ki te pitting i roto i te wai moana. Ko te toharite o te Tau Ātete Pitting ('PREN' = Cr+3.3Mo+16N) o tēnei koranu he 43.8. E whakaatu ana ngā whakamātautau i te ātete teitei ki te whakaekenga waikura-kapiti i roto i te wai moana me te pakaru waikura ahotea i roto i te konutai konutai wera kukū. Ki te whakataurite ki ngā maitai CrNiMo 17 12 2.5, e whakaatu ana i te ātete waikura pai ake i roto i te maha o ngā waikawa i ngā kukū rite, ā, ko tōna kaha hua he tata ki te 50% teitei ake. He pai te whakarewa ma te whakamahi i ngā mea pau Ni-Cr-Mo. Mā te whakawera me ngā wā poto i roto i te awhe 600-1000°C ka karohia te whanaketanga o te wāhanga sigma kino, ka pakarukaru pea, ka whakararu hoki i te ātete ki te waikura.


  • Taumata Ngongo:254SMO • UNS S31254 • 1.4547
  • Momo Ngongo:I whakarewahia, i whakarewahia & i tāia, he maeneene
  • Puka Ngongo:Tika, Piko U
  • Whakaotinga Mata:Kanapa kua whakawerahia, kua whakawerahia me te pīkara, kua orohia
  • Ngā Paerewa (ASME/ASTM):A249, A213, A269, A312
  • Ngā Paerewa (EN):EN 10217-7, EN 10296-2, EN 10216-5, EN 10297-2

    • Taipitopito Hua

    Ngā Tohu Hua

    Ngā Ngongo Kowiri tira S31254, Ngā Ngongo Kowiri tira 1.4547

    Te Hanganga Matū (i roto i te % mā te papatipu)
    Tau C Si Mn P S Cr Ni Mo Cu N Ētahi atu
      Mōrahi. Mōrahi. Mōrahi. Mōrahi. Mōrahi.            
    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  

     

    Āhuatanga Mīhini me te Maimoatanga Wera 
    Tau Rp 0.2Mpa Rp 1.0Mpa RmMpa A (%) Te pakeketanga(HRB) Te Maimoatanga Wera
      Miniti. Miniti. Iti – Mōrahi Miniti. Mōrahi.  
    S31254 310   675 35 100 Otinga Whakawerahia
    1.4547 300 340 650 – 850 35   Otinga Whakawerahia

     

    Rahi o te Ngongo e Whakamahia Ana
    OD Matotoru (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
    6.00 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            
    8.00 x x x x x x x x            
    9.00 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            
    11.00 x x x x x x x x            
    12.00 x x x x x x x x   x        
    12.70 x x x x x x x x x x x      
    13.00 x x x x x x x x            
    14.00 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      
    16.00 x x x x x x x x x x        
    17.15 x x x x x x x x x x x      
    18.00 x x x x x x x x x x        
    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  
    20.00 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  
    22.00 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
    28.00 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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