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Austenitic Steels 317L • UNS S31703• 1.4438 Featured Image
  • Austenitic Steels 317L • UNS S31703• 1.4438
  • Austenitic Steels 317L • UNS S31703• 1.4438

Austenitic Steels 317L • UNS S31703• 1.4438

Short Description:

TP317L Stainles Steel Tubes. Grade 1.4438 / TP317L is a stainless chromium nickel molybdenum steel. Compared to 1.4435 / TP316L, this grade has a higher corrosion resistance and is therefore suitable for the use in highly-corrosive environments with chlorides and halides.


  • Tube Grade: TP317L, AISI 317L, EN 1.4438
  • 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

    317L Stainless Steel Tubes, 1.4438 Stainless Steel Tubes

    Chemical Composition (in % by mass)
    Grade C Si Mn P S Cr Ni Mo Ti N Others
      Max. Max. Max. Max. Max.            
    317L  0.030 1.00 2.00 0.045 0.030 18.0 – 20.0 11.0 – 15.0 3.0 – 4.0      
    1.4438 0.030 1.00 2.00 0.045 0.015 17.5 – 19.5  13.0 – 16.0  3.0 – 4.0   0.10  

     

     Mechanical Property & Heat Treatment 
     Grade Rp 0.2Mpa  Rp 1.0Mpa RmMpa A (%） Hardness (HRB) Heat Treatment
      Min. Min. Min. – Max. Min. Max.  
     317L  205   515 35 90 Solution Annealed
    1.4438  220 250 490 – 690 35   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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