ASTM A336/A336M-21
(Specification)Standard Specification for Alloy Steel Forgings for Pressure and High-Temperature Parts
Standard Specification for Alloy Steel Forgings for Pressure and High-Temperature Parts
ABSTRACT
This specification deals with ferritic alloy steel forgings for high-pressure and high-temperature parts, such as boilers, pressure vessels, and associated equipment. The steel grades covered here include the following: Grade F1; Grade F11, Classes 1, 2, and 3; Grade F12; Grade F5; Grade F5A; Grade F9; Grade F6; Grades F21 and F22, Classes 1 and 3; Grade F91, Grade F3V; and Grade F22V. Other steel grades may also be treated under this specification. Alloy steels shall be melted, forged, and rough machined at stipulated conditions. Except as permitted for Grade F22V, steel forgings shall be annealed or normalized and tempered, but may alternatively be liquid quenched and tempered as well. Impact and Charpy V-notch tests shall be performed wherein specimens shall conform to specified mechanical requirements such as notch toughness, tensile strength, yield strength, elongation, and reduction of area. Materials shall also undergo heat and product analyses and conform to specified chemical requirements.
SCOPE
1.1 This specification2 covers ferritic steel forgings for boilers, pressure vessels, high-temperature parts, and associated equipment.
1.2 Forgings made of steel grades listed in Specification A335/A335M, may also be ordered under this specification. The chemical, tensile, heat treatment, and marking requirements of Specification A335/A335M shall apply, except the forging shall conform to the chemical requirements of Tables 1 and 2 of Specification A335/A335M only with respect to heat analysis. On product analysis they may deviate from these limits to the extent permitted in Table 1 of this specification.
1.3 Supplementary Requirements S1 to S9 are provided for use when additional testing or inspection is desired. These shall apply only when specified individually by the purchaser in the order.
1.4 Unless the order specifies the applicable “M” specification designation, the material shall be furnished to the inch-pound units.
1.5 Specification A336/A336M formerly included austenitic steel forgings, which are now found in Specification A965/A965M.
1.6 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.
1.7 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.
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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.
Designation:A336/A336M −21
Standard Specification for
Alloy Steel Forgings for Pressure and High-Temperature
1
Parts
This standard is issued under the fixed designationA336/A336M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision.Anumber 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* Development of International Standards, Guides and Recom-
2
mendations issued by the World Trade Organization Technical
1.1 This specification covers ferritic steel forgings for
Barriers to Trade (TBT) Committee.
boilers, pressure vessels, high-temperature parts, and associ-
ated equipment.
2. Referenced Documents
1.2 Forgings made of steel grades listed in Specification
3
A335/A335M, may also be ordered under this specification. 2.1 ASTM Standards:
The chemical, tensile, heat treatment, and marking require- A275/A275MPracticeforMagneticParticleExaminationof
ments of Specification A335/A335M shall apply, except the
Steel Forgings
forgingshallconformtothechemicalrequirementsofTables1 A335/A335MSpecification for Seamless Ferritic Alloy-
and 2 of Specification A335/A335M only with respect to heat
Steel Pipe for High-Temperature Service
analysis. On product analysis they may deviate from these
A370Test Methods and Definitions for Mechanical Testing
limits to the extent permitted in Table 1 of this specification.
of Steel Products
A788/A788MSpecification for Steel Forgings, General Re-
1.3 Supplementary Requirements S1 to S9 are provided for
quirements
usewhenadditionaltestingorinspectionisdesired.Theseshall
A965/A965MSpecification for Steel Forgings, Austenitic,
apply only when specified individually by the purchaser in the
for Pressure and High Temperature Parts
order.
E165/E165MPractice for Liquid Penetrant Testing for Gen-
1.4 Unless the order specifies the applicable “M” specifica-
eral Industry
tion designation, the material shall be furnished to the inch-
4
pound units. 2.2 ASME Boiler and Pressure Vessel Code:
Section IIINuclear Power Plant Components
1.5 SpecificationA336/A336Mformerlyincludedaustenitic
Section IXWelding and Brazing Qualifications
steel forgings, which are now found in Specification A965/
5
A965M. 2.3 AWS Specifications:
A5.5/A5.5MLow-AlloySteelElectrodesforShieldedMetal
1.6 The values stated in either SI units or inch-pound units
Arc Welding
are to be regarded separately as standard. The values stated in
A5.23/A5.23MLow-Alloy Steel Electrodes and Fluxes for
each system are not necessarily exact equivalents; therefore, to
Submerged Arc Welding
ensure conformance with the standard, each system shall be
A5.28/A5.28M Low-Alloy Steel Electrodes for Gas
used independently of the other, and values from the two
Shielded Arc Welding
systems shall not be combined.
A5.29/A5.29MLow-Alloy Steel Electrodes for Flux Cored
1.7 This international standard was developed in accor-
Arc Welding
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel, contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee Standards volume information, refer to the standard’s Document Summary page on
A01.06 on Steel Forgings and Billets. the ASTM website.
4
Current edition approved May 1, 2021. Published May 2021. Originally Available from American Society of Mechanical Engineers (ASME), ASME
approved in 1955. Last previous edition approved in 2019 as A336/A336M–19. International Headquarters, Two Park Ave., New York, NY 10016-5990, http://
DOI: 10.1520/A0336_A0336M-21. www.asme.org.
2 5
For ASME Boiler and Pressure Vessel Code applications, see related Specifi- Available from American Welding Society (AWS), 8669 NW 36 St., #130,
cation SA-336/SA-336M in Section II of that Code. Miami, FL 33166-6672, http://www.aws.org.
*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
---------------------- Page: 1 ----------------------
A336/A336M−21
2
TABLE 1 Tensile Requirements
Ferritic Steels
Grade
F91,
F11, F11, F11, F21, F21, F22, F22, Type 1
F1 F12 F5 F5A F9 F6 F6NM F911 F92 F3V F3VCb F22V
Class 2 Class 3 Class 1 Class 3 Clas
...
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: A336/A336M − 19 A336/A336M − 21
Standard Specification for
Alloy Steel Forgings for Pressure and High-Temperature
1
Parts
This standard is issued under the fixed designation A336/A336M; 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 specification covers ferritic steel forgings for boilers, pressure vessels, high-temperature parts, and associated equipment.
1.2 Forgings made of steel grades listed in Specification A335/A335M, may also be ordered under this specification. The
chemical, tensile, heat treatment, and marking requirements of Specification A335/A335M shall apply, except the forging shall
conform to the chemical requirements of Tables 1 and 2 of Specification A335/A335M only with respect to heat analysis. On
product analysis they may deviate from these limits to the extent permitted in Table 1 of this specification.
1.3 Supplementary Requirements S1 to S9 are provided for use when additional testing or inspection is desired. These shall apply
only when specified individually by the purchaser in the order.
1.4 Unless the order specifies the applicable “M” specification designation, the material shall be furnished to the inch-pound units.
1.5 Specification A336/A336M formerly included austenitic steel forgings, which are now found in Specification A965/A965M.
1.6 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system mayare not benecessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used
independently of the other. Combiningother, and values from the two systems may result in non-conformance with the
standard.shall not be combined.
1.7 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
3
2.1 ASTM Standards:
A275/A275M Practice for Magnetic Particle Examination of Steel Forgings
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 A01.06
on Steel Forgings and Billets.
Current edition approved Sept. 1, 2019May 1, 2021. Published September 2019May 2021. Originally approved in 1955. Last previous edition approved in 20182019 as
A336/A336M–18a.–19. DOI: 10.1520/A0336_A0336M–19.10.1520/A0336_A0336M-21.
2
For ASME Boiler and Pressure Vessel Code applications, see related Specification SA-336/SA-336M in Section II of that Code.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’sstandard’s Document Summary page on the ASTM website.
*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
---------------------- Page: 1 ----------------------
A336/A336M − 21
2
TABLE 1 Tensile Requirements
Ferritic Steels
Grade
F91,
F11, F11, F11, F21, F21, F22, F22, Type 1
F1 F12 F5 F5A F9 F6 F6NM F911 F92 F3V F3VCb F22V
Class 2 Class 3 Class 1 Class 3 Class 1 Class 3 Class 1 and
Type 2
70- 70- 75- 60- 70- 60- 80- 85- 85- 115- 75- 60- 75- 60- 90- 90- 90- 85- 85- 85-
Tensile
95 95 100 85 95 85 105 110 110 140 100 85 100 85 110 120 120 110 110 110
strength,
[485- [485- [515- [415- [485- [415- [550- [585- [585- [790- [515- [415- [515- [415- [620- [620- [620- [585- [585- [585-
ksi [MPa]
660] 660] 690] 585] 660] 585] 725] 760] 760] 965] 690] 585] 690] 585] 760] 830] 830] 760] 760] 760]
Yield
strength, 40 40 45 30 40 36 50 55 55 90 45 30 45 30 60 64 64 60 60 60
min, ksi [275] [275] [310] [205] [275] [250] [345] [380] [380] [620] [310] [205] [310] [205] [415] [440] [440] [415] [415] [415]
[MPa]
Elongation
in 2 in. or
20 20 18 20 20 20 19 20 18 15 19 20 19 20 20 20 20 18 18 18
50 mm,
min, %
Reduction
of area, 40 40 40 45 40 40 35 40 35 45 40 45 40 45
...
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: A336/A336M − 21
Standard Specification for
Alloy Steel Forgings for Pressure and High-Temperature
1
Parts
This standard is issued under the fixed designation A336/A336M; 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* Development of International Standards, Guides and Recom-
2 mendations issued by the World Trade Organization Technical
1.1 This specification covers ferritic steel forgings for
Barriers to Trade (TBT) Committee.
boilers, pressure vessels, high-temperature parts, and associ-
ated equipment.
2. Referenced Documents
1.2 Forgings made of steel grades listed in Specification
3
2.1 ASTM Standards:
A335/A335M, may also be ordered under this specification.
The chemical, tensile, heat treatment, and marking require- A275/A275M Practice for Magnetic Particle Examination of
ments of Specification A335/A335M shall apply, except the Steel Forgings
forging shall conform to the chemical requirements of Tables 1
A335/A335M Specification for Seamless Ferritic Alloy-
and 2 of Specification A335/A335M only with respect to heat
Steel Pipe for High-Temperature Service
analysis. On product analysis they may deviate from these
A370 Test Methods and Definitions for Mechanical Testing
limits to the extent permitted in Table 1 of this specification.
of Steel Products
A788/A788M Specification for Steel Forgings, General Re-
1.3 Supplementary Requirements S1 to S9 are provided for
quirements
use when additional testing or inspection is desired. These shall
A965/A965M Specification for Steel Forgings, Austenitic,
apply only when specified individually by the purchaser in the
for Pressure and High Temperature Parts
order.
E165/E165M Practice for Liquid Penetrant Testing for Gen-
1.4 Unless the order specifies the applicable “M” specifica-
eral Industry
tion designation, the material shall be furnished to the inch-
4
2.2 ASME Boiler and Pressure Vessel Code:
pound units.
Section III Nuclear Power Plant Components
1.5 Specification A336/A336M formerly included austenitic
Section IX Welding and Brazing Qualifications
steel forgings, which are now found in Specification A965/
5
A965M.
2.3 AWS Specifications:
A5.5/A5.5M Low-Alloy Steel Electrodes for Shielded Metal
1.6 The values stated in either SI units or inch-pound units
Arc Welding
are to be regarded separately as standard. The values stated in
A5.23/A5.23M Low-Alloy Steel Electrodes and Fluxes for
each system are not necessarily exact equivalents; therefore, to
Submerged Arc Welding
ensure conformance with the standard, each system shall be
A5.28/A5.28M Low-Alloy Steel Electrodes for Gas
used independently of the other, and values from the two
Shielded Arc Welding
systems shall not be combined.
A5.29/A5.29M Low-Alloy Steel Electrodes for Flux Cored
1.7 This international standard was developed in accor-
Arc Welding
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel, contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee Standards volume information, refer to the standard’s Document Summary page on
A01.06 on Steel Forgings and Billets. the ASTM website.
4
Current edition approved May 1, 2021. Published May 2021. Originally Available from American Society of Mechanical Engineers (ASME), ASME
approved in 1955. Last previous edition approved in 2019 as A336/A336M–19. International Headquarters, Two Park Ave., New York, NY 10016-5990, http://
DOI: 10.1520/A0336_A0336M-21. www.asme.org.
2 5
For ASME Boiler and Pressure Vessel Code applications, see related Specifi- Available from American Welding Society (AWS), 8669 NW 36 St., #130,
cation SA-336/SA-336M in Section II of that Code. Miami, FL 33166-6672, http://www.aws.org.
*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
---------------------- Page: 1 ----------------------
A336/A336M − 21
2
TABLE 1 Tensile Requirements
Ferritic Steels
Grade
F91,
F11, F11, F11, F21, F21, F22, F22, Type 1
F1 F12 F5 F5A F9 F6 F6NM F911 F92 F3V F3VCb F22V
Class 2 Class 3 Class 1 Class 3 Class 1 Class 3 Class 1 and
Type 2
70- 70- 75- 60- 70- 60- 80- 85- 85- 115- 75- 60- 75-
...
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