ASTM A289/A289M-97(2018)

Standard Specification for Alloy Steel Forgings for Nonmagnetic Retaining Rings for Generators (Withdrawn 2023)

ABSTRACT
This specification covers nonmagnetic alloy steel retaining ring forgings for generators. The steel shall be made by the electro-slag-remelt (ESR) process. The electrodes shall be made by either the basic electric furnace or ladle refining processes. Sufficient discard shall be taken from each ingot to secure freedom from piping and undue segregation. Forged rings shall be solution treated following hot working and prior to the cold expansion procedure. Rings shall be rough machined prior to cold expansion or final heat treatment. Electrical properties and mechanical properties like yield strength, tensile strength, and elongation shall be determined. The rings shall be subject to the following test: tension test, Charpy V-notch impact test, metallographic test and non-destructive test. The ring shall be from cracks, seams, laps, shrinkage, and other injurious defects.
SCOPE
1.1 This specification covers nonmagnetic alloy steel retaining ring forgings for generators.  
1.2 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.  
1.3 Unless the order specifies the applicable “M” specification designation, the material shall be furnished to the inch-pound units.  
1.4 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.
WITHDRAWN RATIONALE
This specification covered nonmagnetic alloy steel retaining ring forgings for generators.
Formerly under the jurisdiction of Committee A01 on Steel, Stainless Steel and Related Alloys, this specification was withdrawn in September 2023. This standard is being withdrawn without replacement due to its limited use by industry.

General Information

• Status: Withdrawn
• Publication Date: 28-Feb-2018
• Withdrawal Date: 04-Sep-2023
• ICS: 77.140.85 - Iron and steel forgings
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.06 - Steel Forgings and Billets

Standards Content (Sample)

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: A289/A289M − 97 (Reapproved 2018)
Standard Specification for
Alloy Steel Forgings for Nonmagnetic Retaining Rings for
1
Generators
This standard is issued under the fixed designation A289/A289M; 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 E165/E165M Practice for Liquid Penetrant Examination for
General Industry
1.1 This specification covers nonmagnetic alloy steel retain-
ing ring forgings for generators.
3. Ordering Information and General Requirements
1.2 The values stated in either SI units or inch-pound units
3.1 Material supplied to this specification shall conform to
are to be regarded separately as standard. The values stated in
the requirements of Specification A788/A788M, which out-
each system may not be exact equivalents; therefore, each
lines ordering information, manufacturing requirements, test-
system shall be used independently of the other. Combining
ing methods and retesting procedures, marking, certification,
values from the two systems may result in non-conformance
product analysis variation, and additional supplementary re-
with the standard.
quirements.
1.3 Unless the order specifies the applicable “M” specifica-
3.2 If the requirements of this specification are in conflict
tion designation, the material shall be furnished to the inch-
with the requirements of Specification A788/A788M, the
pound units.
requirements of this specification shall prevail.
1.4 This international standard was developed in accor-
3.3 Supplementary requirements of an optional nature are
dance with internationally recognized principles on standard-
provided. They shall apply only when specified by the pur-
ization established in the Decision on Principles for the
chaser.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
4. Manufacture
Barriers to Trade (TBT) Committee.
4.1 The steel shall be made by the electro-slag-remelt (ESR)
2. Referenced Documents process. The electrodes shall be made by either the basic
2 electric furnace or ladle refining processes.
2.1 ASTM Standards:
A342/A342M Test Methods for Permeability of Weakly 4.2 Sufficient discard shall be taken from each ingot to
Magnetic Materials secure freedom from piping and undue segregation.
A370 Test Methods and Definitions for Mechanical Testing
4.3 Forged rings shall be solution treated following hot
of Steel Products
working and prior to the cold expansion procedure.
A531/A531M Practice for Ultrasonic Examination of
4.4 Rings shall be rough machined prior to cold expansion
Turbine-Generator Steel Retaining Rings
or final heat treatment.
A788/A788M Specification for Steel Forgings, General Re-
quirements 4.5 Rings shall be expanded by an appropriate method such
E45 Test Methods for Determining the Inclusion Content of
as segmented dies, tapered plug, etc. in the temperature range
Steel of 60 to 390 °F [15 to 200 °C] in order to develop the required
E112 Test Methods for Determining Average Grain Size tensile properties.
4.6 After cold expansion, the rings shall be heated to
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between 575 and 750 °F [300 to 400 °C] at a rate not to exceed
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
75 °F [40 °C] ⁄h, held at this temperature for 6 to 12 h, and then
A01.06 on Steel Forgings and Billets.
slow cooled to ambient temperature.
Current edition approved March 1, 2018. Published March 2018. Originally
approved in 1946. Last previous edition approved in 2013 as A289/A289M – 97
5. Chemical Requirements
(2013). DOI: 10.1520/A0289_A0289M-97R18.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.1 Heat Analysis—The heat analysis obtained from sam-
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
pling in accordance with Specification A788/A788M shall
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. comply with Table 1 of this specification.
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A289/A289M − 97 (2018)
TABLE 1 Chemical Requirements
8. Number and Location of Tests
Composition, weight %
8.1 The number of tension tests shall be as ordered by the
Carbon 0.10 max
purchaser, but in no case shall there be less than one tension
Manganese 17.5–20.0
test for each ring.
Phosphorus 0.060 max
Sulfur 0.015 max
8.2 Tangentially orien
...