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  • S31803

    1. Standard

    ASTM Standard:ASTM A789M

    2.  Chemical Composition

    Elements
    C
    Mn
    P
    S
    Si
    Cr
    Mo
    Ni
    N
    Cu
    Min
     
     
     
     
     
    21.0
    2.5
    4.5
    0.08
     
    Max
    0.030
    2.0
    0.030
    0.020
    1.00
    23.0
    3.5
    6.5
    0.20
     
    Actual value
    0.02
    1.21
    0.020
    0.001
    0.40
    22.46
    3.11
    4.88
    0.19
    0.13
     

     3. Mechanical Properties

    Mechanical Properties
    Tensile Strength
    MPa
    Yield Strength
    MPa
    Elongation
    %
    Hardness
    HBW/HRC
    Min
    620
    450
    25
     
    Max
     
     
     
    290/30
    Actual value
    883
    729
    31
    26.0

    4. Typical Size

    Size
    Outside Diameter
    Mm
    Permissible Variations
    in Outside Diameter
    mm
    Wall Thickness
    mm
    Average Wall Permissible Variations
    in Wall Thickness
    44×2
    44
    ±0.25
    2
    ±10%S
     
    Note:Standard requirements control range:OD:±0.25mm,WT:±10%S 

    5.Typical Application Environment

    1) Pressure vessels, pressure tanks, high pressure pipe, heat exchanger (chemical processing industry).
       
    2) Oil and gas pipeline, heat exchanger pipe fittings
      
    3) Sewage treatment system
       
    4) Pulp and paper industry classifier, bleaching equipment and storage treatment system
       
    5) Rotating shaft, press roll, blade, impeller, etc. under high corrosion resistance environment
     
    6) Food processing equipment
     
     

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