This specification covers carbon steel plates of low- and intermediate-tensile strengths which may be made by killed, semi-killed, capped, or rimmed steel. These plates are intended for fusion-welded pressure vessels. Plates are normally supplied in the as-rolled condition. The steel shall conform to the required chemical compositions. The plates, as represented by the tension test specimens, shall conform to the mechanical property requirements.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This specification covers carbon steel plates of low- and intermediate-tensile strengths which may be made by killed, semi-killed, capped, or rimmed steel practices at the producer's option. These plates are intended for fusion-welded pressure vessels.
1.2 Plates under this specification are available in three grades having different strength levels as follows:
|Grade ||Tensile Strength, ksi [MPa]|
|A|| 45–65 [310–450]|
|B|| 50–70 [345–485]|
|C|| 55–75 [380–515] |
1.3 The maximum thickness of plates under this specification, for reasons of internal soundness, is limited to a maximum thickness of 2 in. [50 mm] for all grades.
Note 1—For killed carbon steels only refer to the following ASTM specifications:
A 299/A 299M Pressure Vessel Plates, Carbon Steel, Manganese-
A 515/A 515M Pressure Vessel Plates, Carbon Steel, for
Intermediate- and Higher-Temperature Service
A 516/A 516M Pressure Vessel Plates, Carbon Steel, for Moderate-
and Lower-Temperature Service.
1.4 For plates produced from coil and furnished without heat treatment or with stress relieving only, the additional requirements, including additional testing requirements and the reporting of additional test results, of Specification A20/A20M apply.
1.5 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A20/A20M Specification for General Requirements for Steel Plates for Pressure Vessels
carbon steel plate; low-and-intermediate strength steel plate for pressure vessels; steel plate for pressure vessels;
ICS Number Code 77.140.50 (Flat steel products and semi-products)
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Citing ASTM Standards
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