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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.

Description
  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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