ASTM A1090/A1090M-14
(Specification)Standard Specification for Forged Rings and Hollows Produced from Steels with Atmospheric Corrosion Resistance
Standard Specification for Forged Rings and Hollows Produced from Steels with Atmospheric Corrosion Resistance
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. 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 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 is 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 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.
1.7 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 and health practices and determine the applicability of regulatory limitations prior to use.
General Information
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Standards Content (Sample)
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Designation:A1090/A1090M −14
Standard Specification for
Forged Rings and Hollows Produced from Steels with
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Atmospheric Corrosion Resistance
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 1.7 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
1.1 This specification covers high-strength, low-alloy steel
responsibility of the user of this standard to establish appro-
ring and hollow forgings intended primarily for use as base
priate safety and health practices and determine the applica-
plates in welded tubular structures. However use of this
bility of regulatory limitations prior to use.
specification is not restricted to such applications and it may be
used in other applications for which the attributes of the
2. Referenced Documents
materials, as defined by this specification, are appropriate.
2
2.1 ASTM Standards:
1.2 The atmospheric corrosion resistance of these steels in
A6/A6M Specification for General Requirements for Rolled
most environments is substantially better than that of carbon
Structural Steel Bars, Plates, Shapes, and Sheet Piling
structural steel with or without copper addition (see Note 1).
A370 Test Methods and Definitions for Mechanical Testing
Whenexposedtotheatmosphere,thissteelissuitableformany
of Steel Products
applications in the bare (unpainted) condition.
A788/A788M Specification for Steel Forgings, General Re-
NOTE 1—See Guide G101 for methods of estimating the atmospheric quirements
corrosion resistance of low-alloy steels.
A1058 Test Methods for Mechanical Testing of Steel
Products—Metric
1.3 The thickness of forgings is limited only by the capacity
E112 Test Methods for Determining Average Grain Size
of the composition to meet the specified mechanical property
G101 Guide for Estimating the Atmospheric Corrosion Re-
requirements; however, current practice normally limits the
sistance of Low-Alloy Steels
thickness of forgings furnished under this specification to a
range of 2 to 6 in. [51 to 152 mm].
3. Ordering Information
NOTE 2—When the steel is to be welded, a welding procedure suitable
3.1 In addition to the ordering information required by
for the grade of steel and intended use or service should be used. See
Appendix X3 of Specification A6/A6M for information on weldability. Specification A788/A788M, the purchaser shall specify:
3.1.1 Grade designation.
1.4 The text of this specification contains notes, footnotes,
3.1.2 Surface condition (for example, as-forged, rough ma-
or both that provide explanatory material. Such notes and
chined etc.).
footnotes, excluding those in tables and figures, do not contain
3.1.3 Include a sketch or written description of the forging
any mandatory requirements.
with the inquiry and order.
1.5 Supplementary requirements are available but shall
3.2 The purchaser may specify:
apply only when specified by the purchaser at the time of
3.2.1 Limits on repair welding, if permissible.
ordering.
3.2.2 Non-destructive evaluation, in which case reporting
1.6 The values stated in either SI units or inch-pound units
and acceptance criteria must be provided.
are to be regarded separately as standard. The values stated in
each system may not be exact equivalents; therefore, each
4. Materials and Manufacture
system shall be used independently of the other. Combining
4.1 The steel shall be deoxidized and shall be capable of
values from the two systems may result in non-conformance
achieving an ASTM grain size of 6 or finer when evaluated
with the standard.
using any of the methods in Test Methods E112.
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This specification is under the jurisdiction of ASTM Committee A01 on Steel,
2
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee For referenced ASTM standards, visit the ASTM website, www.astm.org, or
A01.06 on Steel Forgings and Billets. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved March 1, 2014. Published March 2014. DOI: 10.1520/ Standards volume information, refer to the standard’s Document Summary page on
A1090_A1090M-14 the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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A1090/A1090M−14
TABLE 2 Tensile Requirements
5. Chemical Composition
Elongation in
Yield Point, min, Tensile Strength, min,
5.1 The heat analysis shall conform to the requirements
2 in. [50 mm]
ksi [MPa] ksi [MPa]
prescribed in
...
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