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ASTM A20/A20M-20

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Standard Specification for General Requirements for Steel Plates for Pressure Vessels

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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 This general requirements specification also covers a group of supplementary requirements that are applicable to several of the above product specifications as indicated therein. 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 of plates for pressure vessels.

1.3 Appendix X2 provides information on the variability of tensile properties in plates for pressure vessels.

1.4 Appendix X3 provides information on the variability of Charpy-V-Notch impact test properties in plates for pressure vessels.

1.5 Appendix X4 provides information on cold bending of plates, including suggested minimum inside radii for cold bending.

1.6 These materials are intended to be suitable for fusion welding. When the steel is to be welded, it is presupposed that a welding procedure suitable for the grade of steel and intended use or service will be utilized.

1.7 In case of any conflict in requirements, the requirements of the applicable product specification prevail over those of this general requirements specification.

1.8 Additional requirements that are specified in the purchase order and accepted by the supplier are permitted, provided that such requirements do not negate any of the requirements of this general requirements specification or the applicable product specification.

1.9 For purposes of determining conformance with this general requirements specification and the applicable product specification, values are to be rounded to the nearest unit in the right-hand place of figures used in expressing the limiting values in accordance with the rounding method of Practice E29.

1.10 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

1.11 This general requirements specification and the applicable product specification are expressed in both inch-pound units and SI units; unless the order specifies the applicable “M” specification designation (SI units), the plates are to be furnished to inch-pound units.

1.12 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.


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.


SDO ASTM: ASTM International
Document Number A20
Publication Date Nov. 1, 2020
Language en - English
Page Count 34
Revision Level 20
Supercedes
Committee A01.11
Publish Date Document Id Type View
Nov. 1, 2020 A0020_A0020M-20 Revision
May 1, 2019 A0020_A0020M-19 Revision
March 1, 2018 A0020_A0020M-18 Revision
Nov. 15, 2017 A0020_A0020M-17 Revision
Nov. 1, 2015 A0020_A0020M-15 Revision
Oct. 1, 2014 A0020_A0020M-14 Revision
Oct. 1, 2013 A0020_A0020M-13 Revision
Nov. 1, 2011 A0020_A0020M-11 Revision
Oct. 1, 2010 A0020_A0020M-10 Revision
Oct. 1, 2009 A0020_A0020M-09 Revision
Nov. 1, 2007 A0020_A0020M-07 Revision
Oct. 1, 2006 A0020_A0020M-06 Revision
May 1, 2005 A0020_A0020M-05 Revision
May 1, 2004 A0020_A0020M-04A Revision
Jan. 1, 2004 A0020_A0020M-04 Revision
Sept. 10, 2002 A0020_A0020M-02 Revision
Nov. 10, 2001 A0020_A0020M-01B Revision
Nov. 10, 2001 A0020_A0020M-01A Revision
Nov. 10, 2001 A0020_A0020M-01 Revision
Nov. 10, 2001 A0020_A0020M-00B Revision
Nov. 10, 2001 A0020_A0020M-00A Revision
Not Available A0020_A0020M-97B Revision
Not Available A0020_A0020M-93A Revision