ASTM A579/A579M-17 - 1.2.2017
 
1. Scope

1.1 This specification covers requirements for forged steel shapes for highly stressed structural members requiring yield strengths in excess of 140 ksi [965 MPa].

1.2 This specification is not intended for applications limited by creep deformation.

1.3 Twenty-eight grades are covered by this specification. Selection will depend upon design, service conditions, and mechanical properties required.

1.4 Supplementary requirements are provided for use when additional testing or inspection is desired. These shall apply only when specified individually by the purchaser in the order.

1.5 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.

1.6 Unless the order specifies the applicable “M” specification designation, the material shall be furnished to the inch-pound units.

 
2. Referenced Documents

A388/A388M-23

Standard Practice for Ultrasonic Examination of Steel Forgings

A255-20a

Standard Test Methods for Determining Hardenability of Steel (Includes all amendments and changes 11/16/2020).

A275/A275M-23

Standard Practice for Magnetic Particle Examination of Steel Forgings

E112-13(2021)

Standard Test Methods for Determining Average Grain Size

E165/E165M-23

Standard Practice for Liquid Penetrant Testing for General Industry

E21-20

Standard Test Methods for Elevated Temperature Tension Tests of Metallic Materials

E3-11(2017)

Standard Guide for Preparation of Metallographic Specimens

A788/A788M-23

Standard Specification for Steel Forgings, General Requirements

E45-18a(2023)

Standard Test Methods for Determining the Inclusion Content of Steel (Includes all amendments and changes 11/6/2023).

A370-23

Standard Test Methods and Definitions for Mechanical Testing of Steel Products