ASTM A20/A20M-19
(Specification)Standard Specification for General Requirements for Steel Plates for Pressure Vessels
Standard Specification for General Requirements for Steel Plates for Pressure Vessels
ABSTRACT
This specification covers a group of common requirements that apply to rolled steel plates for pressure vessels. The steel shall be made in an open-hearth, basic-oxygen, or electric-arc furnace process. Sampling and methods for chemical analysis are discussed. Yield strength tests, tension tests, and notch-toughness tests shall be made in accordance to the product specification to conform to the specified requirements.
SCOPE
1.1 This general requirements specification2 covers a group of common requirements that, unless otherwise specified in the applicable product specification, apply to rolled steel plates for pressure vessels covered by each of the following product specifications issued by ASTM:
Title of Specification
ASTM DesignationA
Pressure Vessel Plates, Alloy Steel, Nickel
A203/A203M
Pressure Vessel Plates, Alloy Steel, Molybdenum
A204/A204M
Pressure Vessel Plates, Alloy Steel, Manganese-
Vanadium-Nickel
A225/A225M
Stainless Chromium Steel-Clad Plate
A263
Stainless Chromium-Nickel Steel-Clad Plate
A264
Nickel and Nickel-Base Alloy-Clad Steel Plate
A265
Pressure Vessel Plates, Carbon Steel, Low- and
Intermediate-Tensile Strength
A285/A285M
Pressure Vessel Plates, Carbon Steel, Manganese-Silicon
A299/A299M
Pressure Vessel Plates, Alloy Steel, Manganese-
Molybdenum and Manganese-Molybdenum-Nickel
A302/A302M
Pressure Vessel Plates, Alloy Steel, Double-
Normalized and Tempered 9 % Nickel
A353/A353M
Pressure Vessel Plates, Alloy Steel, Chromium-
Molybdenum
A387/A387M
Pressure Vessel Plates, Carbon Steel, High Strength
Manganese
A455/A455M
Pressure Vessel Plates, Carbon Steel, for Intermediate-
and Higher-Temperature Service
A515/A515M
Pressure Vessel Plates, Carbon Steel, Moderate- and
Lower-Temperature Service
A516/A516M
Pressure Vessel Plates, Alloy Steel, High-Strength,
Quenched and Tempered
A517/A517M
Pressure Vessel Plates, Alloy Steel, Quenched and
Tempered, Manganese-Molybdenum and Manganese-
Molybdenum-Nickel
A533/A533M
Title of Specification
ASTM DesignationA
Pressure Vessel Plates, Heat-Treated, Carbon-
Manganese-Silicon Steel
A537/A537M
Pressure Vessel Plates, Alloy Steel, Quenched-and-
Tempered, Chromium-Molybdenum, and Chromium-
Molybdenum-Vanadium
A542/A542M
Pressure Vessel Plates, Alloy Steel, Quenched and
Tempered Nickel-Chromium-Molybdenum
A543/A543M
Pressure Vessel Plates, Alloy Steel, Quenched and
Tempered 7, 8, and 9 % Nickel
A553/A553M
Pressure Vessel Plates, Carbon Steel, Manganese-
Titanium for Glass or Diffused Metallic Coatings
A562/A562M
Pressure Vessel Plates, Carbon Steel, High Strength, for
Moderate and Lower Temperature Service
A612/A612M
Pressure Vessel Plates, 5 % and 51/2 % Nickel Alloy
Steels, Specially Heat Treated
A645/A645M
Pressure Vessel Plates, Carbon-Manganese-Silicon
Steel, for Moderate and Lower Temperature Service
A662/A662M
Pressure Vessel Plates, Carbon-Manganese-Silicon
Steel, Quenched and Tempered, for Welded Pressure
Vessels
A724/A724M
Pressure Vessel Plates, Low-Carbon Age-Hardening
Nickel-Copper-Chromium-Molybdenum-Columbium
(Niobium) Alloy Steel
A736/A736M
Pressure Vessel Plates, High-Strength Low-Alloy Steel
A737/A737M
Pressure Vessel Plates, Heat-Treated, Carbon-
Manganese-Silicon Steel, for Moderate and Lower
Temperature Service
A738/A738M
Pressure Vessel Plates, Alloy Steel, Chromium-
Molybdenum-Vanadium
A832/A832M
Steel Plates for Pressure Vessels, Produced by
Thermo-Mechanical Control Process (TMCP)
A841/A841M
Steel Plates, 9 % Nickel Alloy, for Pressure Vessels,
Produced by the Direct-Quenching Process
A844/A844M
Pressure Vessel Plates, Alloy Steel, Chromium-
Molybdenum-Tungsten
A1017/A1017M
1.1.1...
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Contact ASTM International (www.astm.org) for the latest information
Designation:A20/A20M −19
Standard Specification for
1
General Requirements for Steel Plates for Pressure Vessels
This standard is issued under the fixed designation A20/A20M; 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.
A
1. Scope*
Title of Specification ASTM Designation
Pressure Vessel Plates, Heat-Treated, Carbon- A537/A537M
2
1.1 This general requirements specification covers a group
Manganese-Silicon Steel
of common requirements that, unless otherwise specified in the Pressure Vessel Plates, Alloy Steel, Quenched-and- A542/A542M
Tempered, Chromium-Molybdenum, and Chromium-
applicable product specification, apply to rolled steel plates for
Molybdenum-Vanadium
pressure vessels covered by each of the following product
Pressure Vessel Plates, Alloy Steel, Quenched and A543/A543M
specifications issued by ASTM: Tempered Nickel-Chromium-Molybdenum
Pressure Vessel Plates, Alloy Steel, Quenched and A553/A553M
A
Title of Specification ASTM Designation
Tempered 7, 8, and9%Nickel
Pressure Vessel Plates, Alloy Steel, Nickel A203/A203M
Pressure Vessel Plates, Carbon Steel, Manganese- A562/A562M
Pressure Vessel Plates, Alloy Steel, Molybdenum A204/A204M
Titanium for Glass or Diffused Metallic Coatings
Pressure Vessel Plates, Alloy Steel, Manganese- A225/A225M
Pressure Vessel Plates, Carbon Steel, High Strength, for A612/A612M
Vanadium-Nickel
Moderate and Lower Temperature Service
Stainless Chromium Steel-Clad Plate A263 1
Pressure Vessel Plates, 5 % and 5 ⁄2 % Nickel Alloy A645/A645M
Stainless Chromium-Nickel Steel-Clad Plate A264
Steels, Specially Heat Treated
Nickel and Nickel-Base Alloy-Clad Steel Plate A265
Pressure Vessel Plates, Carbon-Manganese-Silicon A662/A662M
Pressure Vessel Plates, Carbon Steel, Low- and A285/A285M
Steel, for Moderate and Lower Temperature Service
Intermediate-Tensile Strength
Pressure Vessel Plates, Carbon-Manganese-Silicon A724/A724M
Pressure Vessel Plates, Carbon Steel, Manganese-Silicon A299/A299M
Steel, Quenched and Tempered, for Welded Pressure
Pressure Vessel Plates, Alloy Steel, Manganese- A302/A302M
Vessels
Molybdenum and Manganese-Molybdenum-Nickel
Pressure Vessel Plates, Low-Carbon Age-Hardening A736/A736M
Pressure Vessel Plates, Alloy Steel, Double- A353/A353M
Nickel-Copper-Chromium-Molybdenum-Columbium
Normalized and Tempered9%Nickel
(Niobium) Alloy Steel
Pressure Vessel Plates, Alloy Steel, Chromium- A387/A387M
Pressure Vessel Plates, High-Strength Low-Alloy Steel A737/A737M
Molybdenum
Pressure Vessel Plates, Heat-Treated, Carbon- A738/A738M
Pressure Vessel Plates, Carbon Steel, High Strength A455/A455M
Manganese-Silicon Steel, for Moderate and Lower
Manganese
Temperature Service
Pressure Vessel Plates, Carbon Steel, for Intermediate- A515/A515M
Pressure Vessel Plates, Alloy Steel, Chromium- A832/A832M
and Higher-Temperature Service
Molybdenum-Vanadium
Pressure Vessel Plates, Carbon Steel, Moderate- and A516/A516M
Steel Plates for Pressure Vessels, Produced by A841/A841M
Lower-Temperature Service
Thermo-Mechanical Control Process (TMCP)
Pressure Vessel Plates, Alloy Steel, High-Strength, A517/A517M
Steel Plates, 9 % Nickel Alloy, for Pressure Vessels, A844/A844M
Quenched and Tempered
Produced by the Direct-Quenching Process
Pressure Vessel Plates, Alloy Steel, Quenched and A533/A533M
Pressure Vessel Plates, Alloy Steel, Chromium- A1017/A1017M
Tempered, Manganese-Molybdenum and Manganese-
Molybdenum-Tungsten
Molybdenum-Nickel
A
These designations refer to the latest issue of the respective specification which
appears in the Annual Book of ASTM Standards, Vol 01.04.
1.1.1 This general requirements specification also covers a
group of supplementary requirements that are applicable to
severaloftheaboveproductspecificationsasindicatedtherein.
Such requirements are provided for use if additional testing or
additional restrictions are required by the purchaser, and apply
only if specified individually in the purchase order.
1.2 Appendix X1 provides information on coil as a source
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel, of plates for pressure vessels.
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
1.3 Appendix X2 provides information on the variability of
A01.11 on Steel Plates for Boilers and Pressure Vessels.
tensile properties in plates for pressure vessels.
Current edition approved May 1, 2019. Published May 2019. Originally
approved in 1950. Last previous edition approved in 2018 as A20/A20M – 18. DOI:
1.4 Appendix X3 p
...
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: A20/A20M − 18 A20/A20M − 19
Standard Specification for
1
General Requirements for Steel Plates for Pressure Vessels
This standard is issued under the fixed designation A20/A20M; 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*
2
1.1 This general requirements specification covers a group of common requirements that, unless otherwise specified in the
applicable product specification, apply to rolled steel plates for pressure vessels covered by each of the following product
specifications issued by ASTM:
A
Title of Specification ASTM Designation
Pressure Vessel Plates, Alloy Steel, Nickel A203/A203M
Pressure Vessel Plates, Alloy Steel, Molybdenum A204/A204M
Pressure Vessel Plates, Alloy Steel, Manganese- A225/A225M
Vanadium-Nickel
Stainless Chromium Steel-Clad Plate A263
Stainless Chromium-Nickel Steel-Clad Plate A264
Nickel and Nickel-Base Alloy-Clad Steel Plate A265
Pressure Vessel Plates, Carbon Steel, Low- and A285/A285M
Intermediate-Tensile Strength
Pressure Vessel Plates, Carbon Steel, Manganese-Silicon A299/A299M
Pressure Vessel Plates, Alloy Steel, Manganese- A302/A302M
Molybdenum and Manganese-Molybdenum-Nickel
Pressure Vessel Plates, Alloy Steel, Double- A353/A353M
Normalized and Tempered 9 % Nickel
Pressure Vessel Plates, Alloy Steel, Chromium- A387/A387M
Molybdenum
Pressure Vessel Plates, Carbon Steel, High Strength A455/A455M
Manganese
Pressure Vessel Plates, Carbon Steel, for Intermediate- A515/A515M
and Higher-Temperature Service
Pressure Vessel Plates, Carbon Steel, Moderate- and A516/A516M
Lower-Temperature Service
Pressure Vessel Plates, Alloy Steel, High-Strength, A517/A517M
Quenched and Tempered
Pressure Vessel Plates, Alloy Steel, Quenched and A533/A533M
Tempered, Manganese-Molybdenum and Manganese-
Molybdenum-Nickel
1
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 March 1, 2018May 1, 2019. Published March 2018May 2019. Originally approved in 1950. Last previous edition approved in 20172018 as
A20/A20M – 17.A20/A20M – 18. DOI: 10.1520/A0020_A0020M-18.10.1520/A0020_A0020M-19.
2
For ASME Boiler and Pressure Vessel Code applications, see related Specification SA-20/SA-20M in Section II of that Code.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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A20/A20M − 19
A
Title of Specification ASTM Designation
Pressure Vessel Plates, Heat-Treated, Carbon- A537/A537M
Manganese-Silicon Steel
Pressure Vessel Plates, Alloy Steel, Quenched-and- A542/A542M
Tempered, Chromium-Molybdenum, and Chromium-
Molybdenum-Vanadium
Pressure Vessel Plates, Alloy Steel, Quenched and A543/A543M
Tempered Nickel-Chromium-Molybdenum
Pressure Vessel Plates, Alloy Steel, Quenched and A553/A553M
Tempered 7, 8, and 9 % Nickel
Pressure Vessel Plates, Carbon Steel, Manganese- A562/A562M
Titanium for Glass or Diffused Metallic Coatings
Pressure Vessel Plates, Carbon Steel, High Strength, for A612/A612M
Moderate and Lower Temperature Service
1
Pressure Vessel Plates, 5 % and 5 ⁄2 % Nickel Alloy A645/A645M
Steels, Specially Heat Treated
Pressure Vessel Plates, Carbon-Manganese-Silicon A662/A662M
Steel, for Moderate and Lower Temperature Service
Pressure Vessel Plates, Carbon-Manganese-Silicon A724/A724M
Steel, Quenched and Tempered, for Welded Pressure
Vessels
Pressure Vessel Plates, Low-Carbon Age-Hardening A736/A736M
Nickel-Copper-Chromium-Molybdenum-Columbium
(Niobium) Alloy Steel
Pressure Vessel Plates, High-Strength Low-Alloy Steel A737/A737M
Pressure Vessel Plates, Heat-Treated, Carbon- A738/A738M
Manganese-Silicon Steel, for Moderate and Lower
Temperature Service
Pressure Vessel Plates, Alloy Steel, Chromium- A832/A832M
Molybdenum-Vanadium
Steel Plates for Pressure Vessels, Produced by A841/A841M
Thermo-Mechanical Control Process (TMCP)
Steel Plates, 9 % Nickel Alloy, for Pressure Vessels, A844/A844M
Produced by the Direct-Quenching Process
Pressure Vessel Plates,
...
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