ASTM A1090/A1090M-19
(Specification)Standard Specification for Forged Rings and Hollows for Use as Base Plates in Power Transmission Structures
Standard Specification for Forged Rings and Hollows for Use as Base Plates in Power Transmission Structures
ABSTRACT
This specification is intended for high-strength, low-alloy forged rings and hollows produced from steels with atmospheric corrosion resistance for use as base plates in welded tubular structures. These steels have considerably better atmospheric corrosion resistance in most environments than carbon structural steel with or without copper addition, and are suitable for many applications in the bare (unpainted) condition when exposed to the atmosphere. The standard covers ordering information and general requirements for delivery, materials and manufacture, heat treatment, mechanical requirements, and the material's chemical composition.
SCOPE
1.1 This specification covers high-strength, low-alloy steel ring and hollow forgings intended primarily for use as base plates in welded tubular structures for power transmission applications. However, use of this specification is not restricted to such applications and it may be used in other applications for which the attributes of the materials, as defined by this specification, are appropriate.
1.2 The atmospheric corrosion resistance of Grades A, B, and C in most environments is substantially better than that of carbon structural steel with or without copper addition (see Note 1). When exposed to the atmosphere, these grades are suitable for many applications in the bare (unpainted) condition.
Note 1: See Guide G101 for methods of estimating the atmospheric corrosion resistance of low-alloy steels.
1.3 The thickness of forgings is limited only by the capacity of the composition to meet the specified mechanical property requirements; however, current practice normally limits the thickness of forgings furnished under this specification to a range of 2 to 6 in. [51 to 152 mm].
Note 2: When the steel is to be welded, a welding procedure suitable for the grade of steel and intended use or service should be used. See Appendix X3 of Specification A6/A6M for information on weldability.
1.4 The text of this specification contains notes, footnotes, or both, that provide explanatory material. Such notes and footnotes, excluding those in tables and figures, do not contain any mandatory requirements.
1.5 Supplementary requirements are available but shall apply only when specified by the purchaser at the time of ordering.
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 standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.8 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:A1090/A1090M −19
Standard Specification for
Forged Rings and Hollows for Use as Base Plates in Power
1
Transmission Structures
This standard is issued under the fixed designation A1090/A1090M; 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.
1. Scope* ensure conformance with the standard, each system shall be
used independently of the other, and values from the two
1.1 This specification covers high-strength, low-alloy steel
systems shall not be combined.
ring and hollow forgings intended primarily for use as base
1.7 This standard does not purport to address all of the
plates in welded tubular structures for power transmission
safety concerns, if any, associated with its use. It is the
applications. However, use of this specification is not restricted
responsibility of the user of this standard to establish appro-
tosuchapplicationsanditmaybeusedinotherapplicationsfor
priate safety, health, and environmental practices and deter-
which the attributes of the materials, as defined by this
mine the applicability of regulatory limitations prior to use.
specification, are appropriate.
1.8 This international standard was developed in accor-
1.2 The atmospheric corrosion resistance of Grades A, B,
dance with internationally recognized principles on standard-
and C in most environments is substantially better than that of
ization established in the Decision on Principles for the
carbon structural steel with or without copper addition (see
Development of International Standards, Guides and Recom-
Note 1). When exposed to the atmosphere, these grades are
mendations issued by the World Trade Organization Technical
suitable for many applications in the bare (unpainted) condi-
Barriers to Trade (TBT) Committee.
tion.
NOTE 1—See Guide G101 for methods of estimating the atmospheric 2. Referenced Documents
corrosion resistance of low-alloy steels.
2
2.1 ASTM Standards:
1.3 The thickness of forgings is limited only by the capacity
A6/A6M Specification for General Requirements for Rolled
of the composition to meet the specified mechanical property
Structural Steel Bars, Plates, Shapes, and Sheet Piling
requirements; however, current practice normally limits the
A370 Test Methods and Definitions for Mechanical Testing
thickness of forgings furnished under this specification to a
of Steel Products
range of 2 to 6 in. [51 to 152 mm].
A788/A788M Specification for Steel Forgings, General Re-
quirements
NOTE 2—When the steel is to be welded, a welding procedure suitable
for the grade of steel and intended use or service should be used. See A1058 Test Methods for Mechanical Testing of Steel
Appendix X3 of Specification A6/A6M for information on weldability.
Products—Metric
E112 Test Methods for Determining Average Grain Size
1.4 The text of this specification contains notes, footnotes,
G101 Guide for Estimating the Atmospheric Corrosion Re-
or both, that provide explanatory material. Such notes and
sistance of Low-Alloy Steels
footnotes, excluding those in tables and figures, do not contain
any mandatory requirements.
3. Ordering Information
1.5 Supplementary requirements are available but shall
3.1 In addition to the ordering information required by
apply only when specified by the purchaser at the time of
Specification A788/A788M, the purchaser shall specify:
ordering.
3.1.1 Grade and class designation.
1.6 The values stated in either SI units or inch-pound units
3.1.2 Surface condition (for example, as-forged, rough
are to be regarded separately as standard. The values stated in
machined, etc.).
each system are not necessarily exact equivalents; therefore, to
3.1.3 Include a sketch or written description of the forging
with the inquiry and order.
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
2
A01.06 on Steel Forgings and Billets. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved June 1, 2019. Published June 2019. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 2014. Last previous edition approved in 2014 as A1090/A1090M–14. Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/A1090_A1090M–19. the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor
...
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: A1090/A1090M − 14 A1090/A1090M − 19
Standard Specification for
Forged Rings and Hollows Produced from Steels with
Atmospheric Corrosion Resistancefor Use as Base Plates in
1
Power Transmission Structures
This standard is issued under the fixed designation A1090/A1090M; 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.
1. Scope Scope*
1.1 This specification covers high-strength, low-alloy steel ring and hollow forgings intended primarily for use as base plates
in welded tubular structures. However structures for power transmission applications. However, use of this specification is not
restricted to such applications and it may be used in other applications for which the attributes of the materials, as defined by this
specification, are appropriate.
1.2 The atmospheric corrosion resistance of these steels Grades A, B, and C in most environments is substantially better than
that of carbon structural steel with or without copper addition (see Note 1). When exposed to the atmosphere, this steel isthese
grades are suitable for many applications in the bare (unpainted) condition.
NOTE 1—See Guide G101 for methods of estimating the atmospheric corrosion resistance of low-alloy steels.
1.3 The thickness of forgings is limited only by the capacity of the composition to meet the specified mechanical property
requirements; however, current practice normally limits the thickness of forgings furnished under this specification to a range of
2 to 6 in. [51 to 152 mm].
NOTE 2—When the steel is to be welded, a welding procedure suitable for the grade of steel and intended use or service should be used. See Appendix
X3 of Specification A6/A6M for information on weldability.
1.4 The text of this specification contains notes, footnotes, or both, that provide explanatory material. Such notes and footnotes,
excluding those in tables and figures, do not contain any mandatory requirements.
1.5 Supplementary requirements are available but shall apply only when specified by the purchaser at the time of ordering.
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 standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.8 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
2
2.1 ASTM Standards:
A6/A6M Specification for General Requirements for Rolled Structural Steel Bars, Plates, Shapes, and Sheet Piling
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A788/A788M Specification for Steel Forgings, General Requirements
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 March 1, 2014June 1, 2019. Published March 2014June 2019. Originally approved in 2014. Last previous edition approved in 2014 as
A1090/A1090M–14. DOI: 10.1520/A1090_A1090M-1410.1520/A1090_A1090M–19.
2
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 ----------------------
A1090/A1090M − 19
A
...
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: A1090/A1090M − 19
Standard Specification for
Forged Rings and Hollows for Use as Base Plates in Power
1
Transmission Structures
This standard is issued under the fixed designation A1090/A1090M; 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.
1. Scope* ensure conformance with the standard, each system shall be
used independently of the other, and values from the two
1.1 This specification covers high-strength, low-alloy steel
systems shall not be combined.
ring and hollow forgings intended primarily for use as base
1.7 This standard does not purport to address all of the
plates in welded tubular structures for power transmission
safety concerns, if any, associated with its use. It is the
applications. However, use of this specification is not restricted
responsibility of the user of this standard to establish appro-
to such applications and it may be used in other applications for
priate safety, health, and environmental practices and deter-
which the attributes of the materials, as defined by this
mine the applicability of regulatory limitations prior to use.
specification, are appropriate.
1.8 This international standard was developed in accor-
1.2 The atmospheric corrosion resistance of Grades A, B,
dance with internationally recognized principles on standard-
and C in most environments is substantially better than that of
ization established in the Decision on Principles for the
carbon structural steel with or without copper addition (see
Development of International Standards, Guides and Recom-
Note 1). When exposed to the atmosphere, these grades are
mendations issued by the World Trade Organization Technical
suitable for many applications in the bare (unpainted) condi-
Barriers to Trade (TBT) Committee.
tion.
NOTE 1—See Guide G101 for methods of estimating the atmospheric 2. Referenced Documents
corrosion resistance of low-alloy steels.
2
2.1 ASTM Standards:
1.3 The thickness of forgings is limited only by the capacity
A6/A6M Specification for General Requirements for Rolled
of the composition to meet the specified mechanical property
Structural Steel Bars, Plates, Shapes, and Sheet Piling
requirements; however, current practice normally limits the
A370 Test Methods and Definitions for Mechanical Testing
thickness of forgings furnished under this specification to a
of Steel Products
range of 2 to 6 in. [51 to 152 mm].
A788/A788M Specification for Steel Forgings, General Re-
quirements
NOTE 2—When the steel is to be welded, a welding procedure suitable
for the grade of steel and intended use or service should be used. See A1058 Test Methods for Mechanical Testing of Steel
Appendix X3 of Specification A6/A6M for information on weldability.
Products—Metric
E112 Test Methods for Determining Average Grain Size
1.4 The text of this specification contains notes, footnotes,
G101 Guide for Estimating the Atmospheric Corrosion Re-
or both, that provide explanatory material. Such notes and
sistance of Low-Alloy Steels
footnotes, excluding those in tables and figures, do not contain
any mandatory requirements.
3. Ordering Information
1.5 Supplementary requirements are available but shall
3.1 In addition to the ordering information required by
apply only when specified by the purchaser at the time of
Specification A788/A788M, the purchaser shall specify:
ordering.
3.1.1 Grade and class designation.
1.6 The values stated in either SI units or inch-pound units
3.1.2 Surface condition (for example, as-forged, rough
are to be regarded separately as standard. The values stated in
machined, etc.).
each system are not necessarily exact equivalents; therefore, to
3.1.3 Include a sketch or written description of the forging
with the inquiry and order.
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
2
A01.06 on Steel Forgings and Billets. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved June 1, 2019. Published June 2019. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 2014. Last previous edition approved in 2014 as A1090/A1090M–14. Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/A1090_A1090M–19. 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 ----------------------
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