Pressure Vessel Steel Plate EN10028-6

Oct 24, 2025 Leave a message

EN10028-6 refers to a European standard for weldable, quenched, and tempered fine grain steel plates used in pressure vessels and boilers. The designations like P355Q, P460Q, P500Q, and P690Q indicate different steel grades within this standard, defined by their minimum yield strength.

 

EN10028-6 P355Q

 

EN10028-6 P355Q is a quenched and tempered steel grade used for pressure vessels and boilers. It is a high-strength, weldable, fine-grain steel known for its good mechanical properties, such as toughness and weldability. This standard applies to flat products made of these steels for pressure equipment.

 

C% SI% Mn% P% S% N% B% Cr% Mo% Cu% Nb% Ni% Ti% V% Zr%
0.16 0.4 1.5 0.025 0.015 0.015 0.005 0.3 0.25 0.3 0.05 0.5 0.03 0.06 0.05
Yield Strength, for product in mm, Mpa Tensile Strength, Mpa Elongation, %, min
t≤50 50<t≤100 100<t≤150 t≤100 100<t≤150 22
355 335 315 490-630 450-590

 

EN10028-6 P460Q

 

EN10028-6 P460Q is a specific grade of high-strength, weldable steel plate that has been quenched and tempered, as outlined by the European standard EN 10028-6. It is designed for high-temperature equipment and pressure vessels in industries such as oil, gas, and energy. The "P460" refers to the minimum yield strength of 460MPa, while the "Q" denotes the quenched and tempered delivery condition.

 

C% SI% Mn% P% S% N% B% Cr% Mo% Cu% Nb% Ni% Ti% V% Zr%
0.18 0.5 1.7 0.025 0.015 0.015 0.005 0.5 0.5 0.3 0.05 1 0.03 0.08 0.05
Yield Strength, for product in mm, Mpa Tensile Strength, Mpa Elongation, %, min
t≤50 50<t≤100 100<t≤150 t≤100 100<t≤150 19
460 440 400 550-720 500-670

 

EN10028-6 P500Q

 

EN10028-6 P500Q is a weldable, fine-grain steel plate from the EN 10028-6 standard, specifically designed for pressure vessels and boilers. The "P500Q" designation indicates a minimum yield strength of 500 MPa and a quench and temper treatment, which includes a low-temperature impact test at −20∘𝐶.

 

C% SI% Mn% P% S% N% B% Cr% Mo% Cu% Nb% Ni% Ti% V% Zr%
0.18 0.6 1.7 0.025 0.015 0.015 0.005 1 0.7 0.3 0.05 1 0.05 0.08 0.15
Yield Strength, for product in mm, Mpa Tensile Strength, Mpa Elongation, %, min
t≤50 50<t≤100 100<t≤150 t≤100 100<t≤150 17
500 480 440 590-770 540-720

 

EN10028-6 P690Q

 

EN10028-6 P690Q is a quenched and tempered, weldable fine-grain steel specifically for pressure purposes, known for its high strength and use in applications like boilers and high-temperature pressure vessels. The "P690" indicates a minimum yield strength of 690MPa, and the "Q" signifies that the material has undergone a specific quenching and tempering heat treatment process.

 

C% SI% Mn% P% S% N% B% Cr% Mo% Cu% Nb% Ni% Ti% V% Zr%
0.2 0.8 1.7 0.025 0.015 0.015 0.005 1.5 0.7 0.3 0.06 2.5 0.05 0.12 0.15
Yield Strength, for product in mm, Mpa Tensile Strength, Mpa Elongation, %, min
t≤50 50<t≤100 100<t≤150 t≤100 100<t≤150 14
690 670 630 770-940 720-900

 

What is p355 steel equivalent to?

P355GH pressure vessel steel is an equivalent to ASTM A516 Grade 70 and ASME SA516 Grade 70. Widely used throughout the petrochemical industry, P355GH is a pressure vessel steel grade as specified under the Euro Norm standard (EN10028) which has superseded British Standard and DIN standard equivalents.

 

What is P355?

P355QH is a high-strength carbon steel for pressure vessels and high-temperature use. "P" stands for pressure, "355" indicates a 355 MPa yield strength, and "QH" refers to quenching and tempering.

 

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P355GH pressure vessel steel

P355GH pressure vessel steel

 

Grades Of Pressure Vessel Plates Supplied By GNEE
ASTM ASTM A202/A202M ASTM A202 Grade A ASTM A202 Grade B    
ASTM A203/A203M ASTM A203 Grade A ASTM A203 Grade B ASTM A203 Grade D ASTM A203 Grade E
ASTM A203 Grade F      
ASTM A204/A204M ASTM A204 Grade A ASTM A204 Grade B ASTM A204 Grade C  
ASTM A285/A285M ASTM A285 Grade A ASTM A285 Grade B ASTM A285 Grade C  
ASTM A299/A299M ASTM A299 Grade A ASTM A299 Grade B    
ASTM A302/A302M ASTM A302 Grade A ASTM A302 Grade B ASTM A302 Grade C ASTM A302 Grade D
ASTM A387/A387M ASTM A387 Grade 5 Class1 ASTM A387 Grade 5 Class2 ASTM A387 Grade 11 Class1 ASTM A387 Grade 11 Class2
ASTM A387 Grade 12 Class1 ASTM A387 Grade 12 Class2 ASTM A387 Grade 22 Class1 ASTM A387 Grade 22 Class2
ASTM A515/A515M ASTM A515 Grade 60 ASTM A515 Grade 65 ASTM A515 Grade 70  
ASTM A516/A516M ASTM A516 Grade 55 ASTM A516 Grade 60 ASTM A516 Grade 65 ASTM A516 Grade 70
ASTM A517/A517M ASTM A517 Grade A ASTM A517 Grade B ASTM A517 Grade E ASTM A517 Grade F
ASTM A517 Grade P ASTM A517 Grade J    
ASTM A533/A533M ASTM A533 Grade A Class1 ASTM A533 Grade B Class1 ASTM A533 Grade C Class1 ASTM A533 Grade D Class1
ASTM A533 Grade A Class2 ASTM A533 Grade B Class2 ASTM A533 Grade C Class2 ASTM A533 Grade D Class2
ASTM A533 Grade A Class3 ASTM A533 Grade B Class3 ASTM A533 Grade C Class3 ASTM A533 Grade D Class3
ASTM A537/A537M ASTM A537 Class1 ASTM A537 Class2 ASTM A537 Class3  
ASTM A612/A612M ASTM A612      
ASTM A662/A662M ASTM A662 Grade A ASTM A662 Grade B ASTM A662 Grade C  
EN EN10028-2 EN10028-2 P235GH EN10028-2 P265GH EN10028-2 P295GH EN10028-2 P355GH
EN10028-2 16MO3      
EN10028-3 EN10028-3 P275N EN10028-3 P275NH EN10028-3 P275NL1 EN10028-3 P275NL2
EN10028-3 P355N EN10028-3 P355NH EN10028-3 P355NL1 EN10028-3 P355NL2
EN10028-3 P460N EN10028-3 P460NH EN10028-3 P460NL1 EN10028-3 P460NL2
EN10028-5 EN10028-5 P355M EN10028-5 P355ML1 EN10028-5 P355ML2 EN10028-5 P420M
EN10028-5 P420ML1 EN10028-5 P420ML2 EN10028-5 P460M EN10028-5 P460ML1
EN10028-5 P460ML2      
EN10028-6 EN10028-6 P355Q EN10028-6 P460Q EN10028-6 P500Q EN10028-6 P690Q
EN10028-6 P355QH EN10028-6 P460QH EN10028-6 P500QH EN10028-6 P690QH
EN10028-6 P355QL1 EN10028-6 P460QL1 EN10028-6 P500QL1 EN10028-6 P690QL1
EN10028-6 P355QL2 EN10028-6 P460QL2 EN10028-6 P500QL2 EN10028-6 P690QL2
JIS JIS G3115 JIS G3115 SPV235 JIS G3115 SPV315 JIS G3115 SPV355 JIS G3115 SPV410
JIS G3115 SPV450 JIS G3115 SPV490    
JIS G3103 JIS G3103 SB410 JIS G3103 SB450 JIS G3103 SB480 JIS G3103 SB450M
JIS G3103 SB480M      
GB GB713 GB713 Q245R GB713 Q345R GB713 Q370R GB713 12Cr1MoVR
GB713 12Cr2Mo1R GB713 13MnNiMoR GB713 14Cr1MoR GB713 15CrMoR
GB713 18MnMoNbR      
GB3531 GB3531 09MnNiDR GB3531 15MnNiDR GB3531 16MnDR  
DIN DIN 17155 DIN 17155 HI DIN 17155 HII DIN 17155 10CrMo910 DIN 17155 13CrMo44
DIN 17155 15Mo3 DIN 17155 17Mn4 DIN 17155 19Mn6