ASTM A533/A533M-24

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: A533/A533M − 16 A533/A533M − 24 Used in USDOE-NE Standards
Standard Specification for
Pressure Vessel Plates, Alloy Steel, Quenched and
Tempered, Manganese-Molybdenum and Manganese-
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Molybdenum-Nickel
This standard is issued under the fixed designation A533/A533M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope*
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1.1 This specification covers one type of manganese-molybdenum and four types of manganese-molybdenum-nickel alloy steel
plates for use in the quenched and tempered condition for the construction of welded pressure vessels.
1.2 Material under this specification is available in five types, designated “A”, “B”, “C”, “D”, and “E”.“A,” “B,” “C,” “D,” and
“E.” The material is also available in three classes having the following strength levels.
Tensile Strength,
Class
ksi [MPa]
1 80–100 [550 to 690]
1 80 to 100 [550 to 690]
2 90–115 [620 to 795]
2 90 to 115 [620 to 795]
3 100–125 [690 to 860]
3 100 to 125 [690 to 860]
1.3 The maximum thickness of Class 1 and Class 2 plates is limited only by the capacity of the composition to meet the specified
mechanical property requirements; however, current practice normally limits the maximum thickness to 12 in. [300 mm] [300 mm]
for Types A through D and to 7 in. [180 mm] for Type E.
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1.4 The maximum thickness of Class 3 plates is 2 ⁄2 in. [65 mm] [65 mm] for Types A through D and 2 in. [50 mm] for Type E.
1.5 The minimum nominal thickness of plates of all classes is 0.25 in. [6.5 mm].
1.6 These alloy steel plates in the as-rolled condition are sensitive to cracking during transit and handling, particularly in
thicknesses over about 1 or 2 in. [25 or 50 mm]. 1 in. [25 mm]. They should be shipped in the as-rolled conditions only by mutual
agreement of manufacturer and the purchaser.
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This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.11
on Steel Plates for Boilers and Pressure Vessels.
Current edition approved May 1, 2016March 1, 2024. Published May 2016March 2024. Originally approved in 1965. Last previous edition approved in 20142016 as
A533/A533M – 09 (2014). DOI: 10.1520/A0533_A0533M-16.16. DOI: 10.1520/A0533_A0533M-24.
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For ASME Boiler and Pressure Vessel Code applications, see related Specification SA-533/SA-533M in Section II of that Code.
*A Summary of Changes section appears at the end of this standard
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A533/A533M − 24
1.7 Plates covered by this specification are often used in the beltline region of nuclear reactor vessels where the material properties
may be affected by high levels of radiation. Appendix X1 provides some information pertinent to this usage.
1.8 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.
1.9 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
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2.1 ASTM Standards:
A20/A20M Specification for General Requirements for Steel Plates for Pressure Vessels
A435/A435M Specification for Straight-Beam Ultrasonic Examination of Steel Plates
A577/A577M Specification for Ultrasonic Angle-Beam Examination of Steel Plates
A578/A578M Specification for Straight-Beam Ultrasonic Examination of Rolled Steel Plates for Special Applications
3. General Requirements and Ordering Information
3.1 Material supplied to this material specification shall conform to Specification A20/A20M. These requirements outline the
testing and retesting methods and procedures, permitted variations in dimensions, and
...