EN10028-6 pressure vessel steel plates

EN10028-6 pressure vessel steel plates

The European standard EN10028-6 specifies the requirements for steel plates for pressure equipment of quenched and tempered steels. EN10028-6 pressure vessel steel plates cover P355Q , P355QH , P355QL1 , P355QL2 , P460Q , P460QH , P460QL1 , P460QL2 , P500Q , P500QH , P500QL1 , P500QL2 , P690Q , P690QH , P690QL1 , P690QL2 and so on european standard quenched and tempered pressure vessel steel plates.

EN10028-6 pressure vessel steel plates chemical composition (heat analysis):

EN10028-6 Chemical elements, %, max.
Grade C Si Mn P S N B Cr Mo Cuc Nbd Ni Tid Vd Zrd
P355Q 0,16 0,40 1,50 0,025 0,010 0,015 0,005 0,30 0,25 0,30 0,05 0,50 0,03 0,06 0,05
P355QH
P355QL1 0,020 0,008
P355QL2 0,005
P460Q 0,18 0,50 1,70 0,025 0,010 0,015 0,005 0,50 0,50 0,30 0,05 1,00 0,03 0,08 0,05
P460QH
P460QL1 0,020 0,008
P460QL2 0,005
P500Q 0,18 0,60 1,70 0,025 0,010 0,015 0,005 1,00 0,70 0,30 0,05 1,50 0,05 0,08 0,15
P500QH
P500QL1 0,020 0,008
P500QL2 0,005
P690Q 0,20 0,80 1,70 0,025 0,010 0,015 0,005 1,50 0,70 0,30 0,06 2,50 0,05 0,12 0,15
P690QH
P690QL1 0,020 0,008
P690QL2 0,005

EN10028-6 pressure vessel steel plates mechanical property:

EN10028-6 Yield strength Tensile strength Elongation %
min.
Grade t ≤ 50 50 < t ≤ 100 100 < t ≤ 150
MPa min.
t ≤ 100 100 < t ≤ 150MPa  
P355Q 355 335 315 490 to 630 450 to 590 22
P355QH
P355QL1
P355QL2
P460Q 460 440 400 550 to 720 500 to 670 19
P460QH
P460QL1
P460QL2
P500Q 500 480 440 590 to 770 540 to 720 17
P500QH
P500QL1
P690QL2
P690Q 690 670 630 770 to 940 720 to 900 14
P690QH
P690QL1
P690QL2

EN10028-6 pressure vessel steel plates are used to manufacture all kinds of boilers and important accessories. Because EN10028-6 pressure vessel steel plates are working at medium temperature (below 350 C) and high pressure, they not only bears high pressure, but also suffer impact, fatigue load and water and gas corrosion. EN10028-6 pressure vessel steel plates are required to ensure certain strength, as well as good welding and cold bending performance. EN10028-6 pressure vessel steel plates are widely used in petroleum, chemical, power plant, boiler and other industries. EN10028-6 pressure vessel steel plates are used to make reactor, heat exchanger, separator, spherical tank, oil and gas tank, liquefied gas tank, nuclear reactor pressure shell, boiler drum, liquefied oil and gas cylinder, high pressure water pipe of hydropower station, turbine volute and other equipment and components.

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