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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| 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 | |||






