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Austenitic Steels 321H • UNS S32109 • 1.4878 Featured Image
  • Austenitic Steels 321H • UNS S32109 • 1.4878
  • Austenitic Steels 321H • UNS S32109 • 1.4878

Austenitic Steels 321H • UNS S32109 • 1.4878

Short Description:

TP321H Stainles Steel Tubes. This is the high carbon version of TP 321 which ensures greater creep resistance. Behaves much the same as TP 321 in oxidation resistance. Main applications: Heat exchangers, furnaces, boilers in chemical and petro-chemical plant.


  • Tube Grade: TP321H, AISI 321H, EN 1.4878
  • Tube Type: Welded, Welded & Drawn, Seamless
  • Tube Form: Straight, U Bend, Coiled, Cut-to-Length Pieces
  • Surface Finish: Bright Annealed, Annealed & Pickled, Polished
  • Standards (ASME/ASTM): ASME SA /ASTM A249, A213, A269, A312
  • Standards (EN): EN 10217-7, EN 10296-2, EN 10216-5, EN 10297-2

    • Product Detail

    Product Tags

    321H Stainless Steel Tubes, 1.4878 Stainless Steel Tubes

    Chemical Composition (in % by mass)
    Grade C Si Mn P S Cr Ni Mo Ti N Others
      Min. – Max. Max. Max. Max. Max.            
    321H  0.04 – 0.10 1.00 2.00 0.045 0.030 17.0 – 19.0 9.0 – 12.0   5 X (C+N) – 0.70  0.10   
    1.4878 0.10 1.00 2.00 0.045 0.015 17.0 – 19.0  9.0 – 12.0   5 X C – 0.80     

     

     Mechanical Property & Heat Treatment 
     Grade Rp 0.2Mpa  Rp 1.0Mpa RmMpa A (%） Hardness (HRB) Heat Treatment
      Min. Min. Min. – Max. Min. Max.  
     321H  205   515 35 90 Solution Annealed
    1.4878 190 230 500 40   Solution Annealed

     

    Tube Size Commonly Used
    OD Thickness (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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