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    Vessel Plate

    Pressure vessel plates are specifically for fabricating vessels for storage and transportation in petroleum, chemistry industries and gas separation as well as other similar applications, such as various vertical vessel, heat exchanger, storage tanks, tank wagons etc. In view of the working environment and processing technology of the pressure vessels, the steel plates must have good cold bending & welding properties, with superior plasticity and toughness as well as high temperature short-time (or long-term) strength.

    1. Detailed information

    1.      Normal vessel plates in Chinese standard
    1.1Chemical composition Wt%

    Steel grade

    C

    Mn

    Si

    P

    S

    Nb

    Q245R

    ≤0.20

    0.50-1.00

    ≤0.35

    ≤0.025

    ≤0.010


    Q345R

    ≤0.20

    1.20-1.60

    ≤0.55

    ≤0.025

    ≤0.010


    Q370R

    ≤0.18

    1.20-1.60

    ≤0.55

    ≤0.020

    ≤0.010

    0.15-0.50

    16MnDR

    ≤0.20

    1.20-1.60

    0.15-0.50

    ≤0.020

    ≤0.008

    -

    1.2   Property indexes

    Steel grade

    Thickness mm

    Tensile test

    Impact test

    Bending test

    Yield strength
    ReL, MPa

    Tensile strength
    Rm, Mpa

    Elongation A, %

    Temp 

    Impact , J

    180º

    not less than

    not less than

    not less than

    Q245R

    3-16

    245

    400-520

    25

    0

    34

    d=1.5a

    16-36

    235

    36-60

    225

    60-100

    205

    390-510

    24

    d=2a

    Q345R

    3-16

    345

    510-640

    21

    41

    d=2a

    16-36

    325

    500-630

    d=3a

    36-60

    315

    490-620

    60-100

    305

    20

    Q370R

    10-16

    370

    530-630

    20

    -20

    47

    d=2a

    16-36

    360

    d=3a

    36-60

    340

    520-620

    16MnDR

    6-16

    315

    490-620

    20

    -40

    47

    d=2a

    16-36

    295

    470-600

    d=3a

    36-60

    285

    460-590

    60-100

    275

    450-580

    -30

    100-120

    265

    440-570


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