ASTM A537 steel plates are heat-treated carbon- manganese-silicon steel plates intended for fusion welded pressure vessels and structures. A537 pressure vessel steel plates are available in three classes: A537 class 1, A537 class 2, A537 class 3.
The maximum thickness of A537 class 1 steel plate is 4 in. [100 mm], the max. A537 class 2 and A537 class 3 pressure vessel steel plate thickness is 6 in. [150 mm].
A537 class 1 steel plate shall be normalized. A537 class 2 steel plate and A537 class 3 steel plate shall be quenched and tempered (Q+T).
C | Si | Mn | P | S | Cu | Ni | Cr | Mo |
0.24 | 0.13-0.55 | 0.64-1.72 | 0.025 | 0.025 | 0.38 | 0.28 | 0.29 | 0.09 |
Grade | Thickness | Tensile Strength | Yield Strength |
A537 class 1 | mm | ksi [MPa] | ksi [Mpa] min. |
≤65mm | 70-90 [485-620] | 50 [345] | |
65-100mm | 65-85 [450-585] | 45 [310] | |
100-150mm | - | - | |
A537 class 2 | ≤65mm | 80-100 [550-690] | 60 [415] |
65-100mm | 75-95 [515-655] | 55 [380] | |
100-150mm | 70-90 [485-620] | 46 [315] | |
A537 class 3 | ≤65mm | 80-100 [550-690] | 55 [380] |
65-100mm | 75-95 [515-655] | 50 [345] | |
100-150mm | 70-90 [485-620] | 40 [275] |
Standard | Boiler and Pressure Vessel Steel Grades | |||
ASTM A202/A202M | A202 Grade A | A202 Grade B | ||
ASTM A203/A203M | A203 Grade A | A203 Grade B | A203 Grade D | A203 Grade E |
A203 Grade F | ||||
ASTM A204/A204M | A204 Grade A | A204 Grade B | A204 Grade C | |
ASTM A285/A285M | A285 Grade A | A285 Grade B | A285 Grade C | |
ASTM A299/A299M | A299 Grade A | A299 Grade B | ||
ASTM A302/A302M | A302 Grade A | A302 Grade B | A302 Grade C | A302 Grade D |
ASTM A387/A387M | A387 Grade 5 | A387 Grade 9 | A387 Grade 11 | A387 Grade 12 |
A387 Grade 22 | A387 Grade 91 | |||
ASTM A515/A515M | A515 Grade 60 | A515 Grade 65 | A515 Grade 70 | |
ASTM A516/A516M | A516 Grade 55 | A516 Grade 60 | A516 Grade 65 | A516 Grade 70 |
ASTM A517/A517M | A517 Grade A | A517 Grade B | A517 Grade E | A517 Grade F |
A517 Grade H | A517 Grade P | A517 Grade Q | A517 Grade S | |
ASTM A533/A533M | A533 Grade A | A533 Grade B | A533 Grade C | A533 Grade D |
ASTM A537A537M | A537 Class 1 | A537 Class 2 | A537 Class 3 | |
ASTM A612/A612M | ASTM A612M | |||
ASTM A662/A662M | A662 Grade A | A662 Grade B | A662 Grade C | |
ASTM A841/A841M | A841 Grade A | A841 Grade B | A841 Grade C | A841 Grade D |
A841 Grade E | A841 Grade F | |||
EN10028-2 | P235GH | P265GH | P295GH | P355GH |
16Mo3 | ||||
EN10028-3 | P275NH | P275NL1 | P275NL2 | P355N |
P355NH | P355NL1 | P355NL2 | P460NH | |
P460NL1 | P460NL2 | |||
EN10028-5 | P355M | P355ML1 | P355ML2 | P420M |
P420ML1 | P420ML2 | P460M | P460ML1 | |
P460ML2 | ||||
EN10028-6 | P355Q | P355QH | P355QL1 | P355QL2 |
P460Q | P460QH | P460QL1 | P460QL2 | |
P500Q | P500QH | P500QL1 | P500QL2 | |
P690Q | P690QH | P690QL1 | P690QL2 | |
JIS G3115 | SPV235 | SPV315 | SPV355 | SPV410 |
SPV450 | SPV490 | |||
JIS G3103 | SB410 | SB450 | SB480 | SB450M |
SB480M | ||||
GB713 | Q245R | Q345R | Q370R | 18MnMoNbR |
15CrMoR | 14Cr1MoR | 13MnNiMoR | 12Cr2Mo1R | |
12Cr1MoVR | ||||
GB3531 | 16MnDR | 15MnNiDR | 09MnNiDR | |
DIN 17155 | HI | HII | 17Mn4 | 19Mn6 |
15Mo3 | 13CrMo44 | 10CrMo910 | ||
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