ASTM-A289 › Historical Revision Information
Standard Specification for Alloy Steel Forgings for Nonmagnetic Retaining Rings for Generators

ASTM-A289 - 1997 R08 EDITION - SUPERSEDED
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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.

ORDER

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.

Keywords

alloy steel; cold worked; generator retaining rings; nonmagnetic; steel forgings; Alloy steel forgings--specifications; Cold-worked steel--specifications; Generator materials; Nonmagnetic retaining rings; Retaining rings; ICS Number Code 77.140.85 (Iron and steel forgings)

To find similar documents by ASTM Volume:

01.05 (Steel--Bars, Forgings, Bearing, Chain, Tool)

To find similar documents by classification:

77.140.85 (Iron and steel forgings)

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Document Number

ASTM-A289/A289M-97(2008)

Revision Level

1997 R08 EDITION

Status

Superseded

Modification Type

Reapproval

Publication Date

April 1, 2008

Document Type

Specification

Page Count

3 pages

Committee Number

A01.06