ASTM A289/A289M-97(2008)

ASTM A289/A289M-97(2008) - 1.3.2008

1. 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.

2. Referenced Documents

A370-26	Standard Test Methods and Definitions for Mechanical Testing of Steel Products
E45-25	Standard Test Methods for Determining the Inclusion Content of Steel
A342/A342M-26	Standard Test Methods for Permeability of Weakly Magnetic Materials
E165/E165M-23	Standard Practice for Liquid Penetrant Testing for General Industry
E112-25	Standard Test Methods for Determining Average Grain Size
A531/A531M-24	Standard Practice for Ultrasonic Examination of Turbine-Generator Steel Retaining Rings
A788/A788M-26a	Standard Specification for Steel Forgings, General Requirements (Includes all amendments and changes 8/6/2026).