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Pressure Vessel Plate ASME SA537 Class 1 and ASTM A537 Clas
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Pressure Vessel Plate ASME SA537 Class 1 and ASTM A537 Clas
We are also world-leading stockists and processors of other ASME and ASTM carbon steel pressure vessel plates manufactured and certified to:
ASTM A516 Gr. 70 ASME SA516 Gr. 70
ASTM A516 Gr. 65 ASME SA516 Gr. 65
ASTM A516 Gr. 60 ASME SA516 Gr. 60
ASTM / ASME A / SA 516 Gr. 60 / 65 / 70 HIC
The A537 / SA537 standard, its full name is “Standard Specification for Pressure Vessel Plates, Heat-Treated, Carbon-Manganese-Silicon Steel”, is intended use in the manufacture of fusion welded pressure vessels and structures.
The material under this specification is available in three classes. Class 1 steel is supplied in the normalised condition and the specification covers plates up to 100 mm (4 inches) in thickness.
ASME SA537 Class 1 / ASTM A537 Class 1 - the specification
Chemical Requirements
| Element | Thickness | Composition (%) | Note | ||
| Carbon (max) | 0.24 | A, B | |||
| Manganese | 40 mm and under | 0.70 - 1.35 | A, C | ||
| 40 mm and under | 0.64 - 1.46 | B, C | |||
| Over 40 mm | 1.00 - 1.60 | A, C | |||
| Over 40 mm | 0.92 - 1.72 | B, C | |||
| Phosphorus (max) | 0.035 | A, B | |||
| Sulphur (max) | 0.035 | A, B | |||
| Silicon | 0.15 - 0.50 | A | |||
| 0.13 - 0.55 | B | ||||
| Copper (max) | 0.35 | A | |||
| 0.38 | B | ||||
| Nickel (max) | 0.25 | A, C | |||
| 0.28 | B, C | ||||
| Chromium (max) | 0.25 | A | |||
| 0.29 | B | ||||
| Molybdenum (max) | 0.08 | A | |||
| 0.09 | B | ||||
| Mechanical Property | Value | ||
| Tensile Strength, MPa (ksi) | 485 - 620 (70 - 90) | ||
| Yield Strength, min MPa (ksi) | 345 (50) | ||
| Elongation min, % 200 mm (8 in) | 18 | ||
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